<?xml version="1.0" encoding="UTF-8" ?>
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" >
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
<arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/notAll" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#notAll"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#ConsolidatedBalanceSheets" roleURI="http://www.mreic.com/role/ConsolidatedBalanceSheets"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#ConsolidatedBalanceSheetsParenthetical" roleURI="http://www.mreic.com/role/ConsolidatedBalanceSheetsParenthetical"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#OrganizationandAccountingPoliciesDetails1" roleURI="http://www.mreic.com/role/OrganizationandAccountingPoliciesDetails1"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#Organizationandaccountingpoliciesdetailstextual" roleURI="http://www.mreic.com/role/Organizationandaccountingpoliciesdetailstextual"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#NetIncomePerShareDetails" roleURI="http://www.mreic.com/role/NetIncomePerShareDetails"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#Realestateinvestmentsdetailstextual" roleURI="http://www.mreic.com/role/Realestateinvestmentsdetailstextual"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#Securitiesavailableforsaledetails" roleURI="http://www.mreic.com/role/Securitiesavailableforsaledetails"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#Securitiesavailableforsaledetails1" roleURI="http://www.mreic.com/role/Securitiesavailableforsaledetails1"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#SecuritiesAvailableForSaleDetailsTextual" roleURI="http://www.mreic.com/role/SecuritiesAvailableForSaleDetailsTextual"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#DebtDetails" roleURI="http://www.mreic.com/role/DebtDetails"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#ShareholdersEquityDetailsTextual" roleURI="http://www.mreic.com/role/ShareholdersEquityDetailsTextual"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#FairValueMeasurementsDetails" roleURI="http://www.mreic.com/role/FairValueMeasurementsDetails"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#SupplementalCashFlowInformationDetails" roleURI="http://www.mreic.com/role/SupplementalCashFlowInformationDetails"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#ContingenciesAndCommitmentsDetails" roleURI="http://www.mreic.com/role/ContingenciesAndCommitmentsDetails"/>
<roleRef xlink:type="simple" xlink:href="mnr-20140630.xsd#SubsequentEventsDetails" roleURI="http://www.mreic.com/role/SubsequentEventsDetails"/>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/ConsolidatedBalanceSheets">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_StatementTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_1" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2" xlink:to="loc_us-gaap_ClassOfStockDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2" xlink:to="loc_us-gaap_ClassOfStockDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_SeriesBPreferredStockMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsAbstract" xlink:label="loc_us-gaap_AssetsAbstract_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_AssetsAbstract_6" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyNetAbstract" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Land" xlink:label="loc_us-gaap_Land_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" xlink:to="loc_us-gaap_Land_8" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentBuildingAndBuildingImprovements" xlink:label="loc_us-gaap_InvestmentBuildingAndBuildingImprovements_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" xlink:to="loc_us-gaap_InvestmentBuildingAndBuildingImprovements_9" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyAtCost" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAtCost_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAtCost_10" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyAccumulatedDepreciation_11" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateInvestmentPropertyNet" xlink:label="loc_us-gaap_RealEstateInvestmentPropertyNet_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateInvestmentPropertyNetAbstract_7" xlink:to="loc_us-gaap_RealEstateInvestmentPropertyNet_12" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_13" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecurities_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_AvailableForSaleSecurities_14" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherReceivables" xlink:label="loc_us-gaap_OtherReceivables_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_OtherReceivables_15" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredRentReceivablesNet" xlink:label="loc_us-gaap_DeferredRentReceivablesNet_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_DeferredRentReceivablesNet_16" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PrepaidExpenseCurrentAndNoncurrent" xlink:label="loc_us-gaap_PrepaidExpenseCurrentAndNoncurrent_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_PrepaidExpenseCurrentAndNoncurrent_17" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredFinanceCostsNet" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_18" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredCostsLeasingNet" xlink:label="loc_us-gaap_DeferredCostsLeasingNet_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_DeferredCostsLeasingNet_19" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_20" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherAssets" xlink:label="loc_us-gaap_OtherAssets_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_OtherAssets_21" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_6" xlink:to="loc_us-gaap_Assets_22" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_23" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_23" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAbstract" xlink:label="loc_us-gaap_LiabilitiesAbstract_24" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_23" xlink:to="loc_us-gaap_LiabilitiesAbstract_24" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_NotesPayable" xlink:label="loc_us-gaap_NotesPayable_25" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_24" xlink:to="loc_us-gaap_NotesPayable_25" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LoansPayable" xlink:label="loc_us-gaap_LoansPayable_26" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_24" xlink:to="loc_us-gaap_LoansPayable_26" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_27" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_24" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent_27" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherLiabilities" xlink:label="loc_us-gaap_OtherLiabilities_28" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_24" xlink:to="loc_us-gaap_OtherLiabilities_28" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_29" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAbstract_24" xlink:to="loc_us-gaap_Liabilities_29" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommitmentsAndContingencies" xlink:label="loc_us-gaap_CommitmentsAndContingencies_30" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_23" xlink:to="loc_us-gaap_CommitmentsAndContingencies_30" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_23" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockValueOutstanding" xlink:label="loc_us-gaap_PreferredStockValueOutstanding_32" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_us-gaap_PreferredStockValueOutstanding_32" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_33" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_us-gaap_CommonStockValueOutstanding_33" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExcessStockValue" xlink:label="loc_mnr_ExcessStockValue_34" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_mnr_ExcessStockValue_34" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_35" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_us-gaap_AdditionalPaidInCapital_35" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_36" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_36" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_37" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_37" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_38" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract_31" xlink:to="loc_us-gaap_StockholdersEquity_38" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_39" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_23" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_39" order="30" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/ConsolidatedBalanceSheetsParenthetical">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_StatementTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_1" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2" xlink:to="loc_us-gaap_ClassOfStockDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2" xlink:to="loc_us-gaap_ClassOfStockDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_SeriesBPreferredStockMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AccumulatedAmortizationDeferredFinanceCosts" xlink:label="loc_us-gaap_AccumulatedAmortizationDeferredFinanceCosts_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_AccumulatedAmortizationDeferredFinanceCosts_6" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DeferredCostsLeasingAccumulatedAmortization" xlink:label="loc_us-gaap_DeferredCostsLeasingAccumulatedAmortization_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_DeferredCostsLeasingAccumulatedAmortization_7" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_8" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DividendRateInPercentageOfPreferredStock" xlink:label="loc_mnr_DividendRateInPercentageOfPreferredStock_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_mnr_DividendRateInPercentageOfPreferredStock_9" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_PreferredStockParOrStatedValuePerShare_10" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_11" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockSharesIssued" xlink:label="loc_us-gaap_PreferredStockSharesIssued_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_PreferredStockSharesIssued_12" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockSharesOutstanding" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_13" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_14" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_15" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_CommonStockSharesIssued_16" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_17" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExcessStockParOrStatedValuePerShare" xlink:label="loc_mnr_ExcessStockParOrStatedValuePerShare_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_mnr_ExcessStockParOrStatedValuePerShare_18" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ExcessStockSharesAuthorized" xlink:label="loc_us-gaap_ExcessStockSharesAuthorized_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_ExcessStockSharesAuthorized_19" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ExcessStockSharesIssued" xlink:label="loc_us-gaap_ExcessStockSharesIssued_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_ExcessStockSharesIssued_20" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ExcessStockSharesOutstanding" xlink:label="loc_us-gaap_ExcessStockSharesOutstanding_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_ExcessStockSharesOutstanding_21" order="160" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/OrganizationandAccountingPoliciesDetails1">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_1" xlink:to="loc_us-gaap_AwardTypeAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3" xlink:to="loc_us-gaap_EmployeeStockOptionMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_StockOptionsOneMember" xlink:label="loc_mnr_StockOptionsOneMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3" xlink:to="loc_mnr_StockOptionsOneMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_StockOptionsTwoMember" xlink:label="loc_mnr_StockOptionsTwoMember_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3" xlink:to="loc_mnr_StockOptionsTwoMember_6" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AmendedAndRestatedPlanMember" xlink:label="loc_mnr_AmendedAndRestatedPlanMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_3" xlink:to="loc_mnr_AmendedAndRestatedPlanMember_7" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_StockOptionsGrantedAbstract" xlink:label="loc_mnr_StockOptionsGrantedAbstract_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0" xlink:to="loc_mnr_StockOptionsGrantedAbstract_8" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDate" xlink:label="loc_mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDate_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_StockOptionsGrantedAbstract_8" xlink:to="loc_mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardGrantDate_9" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_StockOptionsGrantedAbstract_8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationNumberOfEmployeesAffected_10" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfShares" xlink:label="loc_mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfShares_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_StockOptionsGrantedAbstract_8" xlink:to="loc_mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfShares_11" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionPrice" xlink:label="loc_mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionPrice_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_StockOptionsGrantedAbstract_8" xlink:to="loc_mnr_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionPrice_12" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_StockOptionsGrantedAbstract_8" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationDate_13" order="40" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/Organizationandaccountingpoliciesdetailstextual">
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems" xlink:label="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems_0" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesTable" xlink:label="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems_0" xlink:to="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesTable_1" xlink:to="loc_dei_LegalEntityAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_2" xlink:to="loc_dei_EntityDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_2" xlink:to="loc_dei_EntityDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ChepMember" xlink:label="loc_mnr_ChepMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_3" xlink:to="loc_mnr_ChepMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesTable_1" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_StJosephMember" xlink:label="loc_mnr_StJosephMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_StJosephMember_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RoanokeMember" xlink:label="loc_mnr_RoanokeMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_RoanokeMember_8" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MonroeNcMember" xlink:label="loc_mnr_MonroeNcMember_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_MonroeNcMember_9" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RidgelandMember" xlink:label="loc_mnr_RidgelandMember_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_RidgelandMember_10" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentMember" xlink:label="loc_mnr_RentMember_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_RentMember_11" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentOneMember" xlink:label="loc_mnr_RentOneMember_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_RentOneMember_12" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentTwoMember" xlink:label="loc_mnr_RentTwoMember_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_RentTwoMember_13" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentThreeMember" xlink:label="loc_mnr_RentThreeMember_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_RentThreeMember_14" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OrganizationAndAccountingPoliciesTextualAbstract" xlink:label="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndSummaryOfSignificantAccountingPoliciesLineItems_0" xlink:to="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OperatingSupportFromAdviserDescription" xlink:label="loc_us-gaap_OperatingSupportFromAdviserDescription_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_OperatingSupportFromAdviserDescription_16" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SpaceGivenOnLease" xlink:label="loc_mnr_SpaceGivenOnLease_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_SpaceGivenOnLease_17" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BuildingAreaNet" xlink:label="loc_mnr_BuildingAreaNet_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_BuildingAreaNet_18" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_GainLossOnContractTermination" xlink:label="loc_us-gaap_GainLossOnContractTermination_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_GainLossOnContractTermination_19" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_TermOfLeaseAgreement" xlink:label="loc_mnr_TermOfLeaseAgreement_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_TermOfLeaseAgreement_20" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PercentageOfRemainingTerminationPaymentDueUnderLease" xlink:label="loc_mnr_PercentageOfRemainingTerminationPaymentDueUnderLease_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_PercentageOfRemainingTerminationPaymentDueUnderLease_21" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SpaceOnLeaseInPercentage" xlink:label="loc_mnr_SpaceOnLeaseInPercentage_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_SpaceOnLeaseInPercentage_22" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PercentagePortionOfSpaceThatNotReLeased" xlink:label="loc_mnr_PercentagePortionOfSpaceThatNotReLeased_23" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_PercentagePortionOfSpaceThatNotReLeased_23" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_24" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_24" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LeaseExpirationDate1" xlink:label="loc_us-gaap_LeaseExpirationDate1_25" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_LeaseExpirationDate1_25" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OperatingLeasesRentExpensePerSquare" xlink:label="loc_mnr_OperatingLeasesRentExpensePerSquare_26" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_OperatingLeasesRentExpensePerSquare_26" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_InitialBaseRentOnLease" xlink:label="loc_mnr_InitialBaseRentOnLease_27" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_InitialBaseRentOnLease_27" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedBaseRentOnLease" xlink:label="loc_mnr_AnnualizedBaseRentOnLease_28" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedBaseRentOnLease_28" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedImprovementRentOnLease" xlink:label="loc_mnr_AnnualizedImprovementRentOnLease_29" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedImprovementRentOnLease_29" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedBaseAndImprovementRent" xlink:label="loc_mnr_AnnualizedBaseAndImprovementRent_30" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedBaseAndImprovementRent_30" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_InitialBaseRentPerSquare" xlink:label="loc_mnr_InitialBaseRentPerSquare_31" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_InitialBaseRentPerSquare_31" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedBaseRentPerSquare" xlink:label="loc_mnr_AnnualizedBaseRentPerSquare_32" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedBaseRentPerSquare_32" order="160" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedImprovementRentPerSquare" xlink:label="loc_mnr_AnnualizedImprovementRentPerSquare_33" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedImprovementRentPerSquare_33" order="170" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedBaseAndImprovementRentPerSquare" xlink:label="loc_mnr_AnnualizedBaseAndImprovementRentPerSquare_34" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedBaseAndImprovementRentPerSquare_34" order="180" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OperatingLeaseTerminationFee" xlink:label="loc_mnr_OperatingLeaseTerminationFee_35" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_OperatingLeaseTerminationFee_35" order="190" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualImprovementRentCharge" xlink:label="loc_mnr_AnnualImprovementRentCharge_36" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualImprovementRentCharge_36" order="200" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PropertyPlantAndEquipmentImprovements" xlink:label="loc_mnr_PropertyPlantAndEquipmentImprovements_37" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_PropertyPlantAndEquipmentImprovements_37" order="210" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedImprovementRentOverLifePeriodDescription" xlink:label="loc_mnr_AnnualizedImprovementRentOverLifePeriodDescription_38" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AnnualizedImprovementRentOverLifePeriodDescription_38" order="220" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AreaOfLeasedFacility" xlink:label="loc_mnr_AreaOfLeasedFacility_39" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_mnr_AreaOfLeasedFacility_39" order="230" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_TerminationLoansDescription" xlink:label="loc_us-gaap_TerminationLoansDescription_40" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_TerminationLoansDescription_40" order="240" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_41" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensation_41" order="250" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_42" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_42" order="260" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_43" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_43" order="270" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_44" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_44" order="280" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_45" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_45" order="290" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_46" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_46" order="300" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_47" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_47" order="310" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_48" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_48" order="320" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_49" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_OrganizationAndAccountingPoliciesTextualAbstract_15" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_49" order="330" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/NetIncomePerShareDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_0" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_1" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_2" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AntidilutiveSecuritiesNameDomain" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_2" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConvertibleDebtSecuritiesMember" xlink:label="loc_us-gaap_ConvertibleDebtSecuritiesMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3" xlink:to="loc_us-gaap_ConvertibleDebtSecuritiesMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_3" xlink:to="loc_us-gaap_EmployeeStockOptionMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NetIncomeAttributableToCompanyCommonShareholdersPerShareTextualAbstract" xlink:label="loc_mnr_NetIncomeAttributableToCompanyCommonShareholdersPerShareTextualAbstract_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_0" xlink:to="loc_mnr_NetIncomeAttributableToCompanyCommonShareholdersPerShareTextualAbstract_6" order="10" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/Realestateinvestmentsdetailstextual">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstatePropertiesAxis" xlink:label="loc_us-gaap_RealEstatePropertiesAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1" xlink:to="loc_us-gaap_RealEstatePropertiesAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstatePropertiesDomain" xlink:label="loc_us-gaap_RealEstatePropertiesDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RealEstatePropertiesAxis_2" xlink:to="loc_us-gaap_RealEstatePropertiesDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstatePropertiesDomain" xlink:label="loc_us-gaap_RealEstatePropertiesDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RealEstatePropertiesAxis_2" xlink:to="loc_us-gaap_RealEstatePropertiesDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LivoniaMiMember" xlink:label="loc_mnr_LivoniaMiMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_LivoniaMiMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OliveBranchMember" xlink:label="loc_mnr_OliveBranchMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_OliveBranchMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OrionMember" xlink:label="loc_mnr_OrionMember_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_OrionMember_6" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FedexCorporationMember" xlink:label="loc_mnr_FedexCorporationMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_FedexCorporationMember_7" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FedexCorporationSubsidiariesMember" xlink:label="loc_mnr_FedexCorporationSubsidiariesMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_FedexCorporationSubsidiariesMember_8" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MilwaukeeElectricToolCorporationMember" xlink:label="loc_mnr_MilwaukeeElectricToolCorporationMember_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_MilwaukeeElectricToolCorporationMember_9" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FedexAndFedexSubsidiariesMember" xlink:label="loc_mnr_FedexAndFedexSubsidiariesMember_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_FedexAndFedexSubsidiariesMember_10" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RoanokeMember" xlink:label="loc_mnr_RoanokeMember_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_RoanokeMember_11" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OrionMiPhaseOneMember" xlink:label="loc_mnr_OrionMiPhaseOneMember_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_OrionMiPhaseOneMember_12" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OrionMiPhaseTwoMember" xlink:label="loc_mnr_OrionMiPhaseTwoMember_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_OrionMiPhaseTwoMember_13" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FortMillScPhaseOneMember" xlink:label="loc_mnr_FortMillScPhaseOneMember_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_FortMillScPhaseOneMember_14" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FortMillScPhaseTwoMember" xlink:label="loc_mnr_FortMillScPhaseTwoMember_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_FortMillScPhaseTwoMember_15" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_TulsaMember" xlink:label="loc_mnr_TulsaMember_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_TulsaMember_16" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BucknerKyRalcorpHoldingsMember" xlink:label="loc_mnr_BucknerKyRalcorpHoldingsMember_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_BucknerKyRalcorpHoldingsMember_17" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_EdwardsvilleKsMember" xlink:label="loc_mnr_EdwardsvilleKsMember_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_EdwardsvilleKsMember_18" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AltoonaPaMember" xlink:label="loc_mnr_AltoonaPaMember_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_AltoonaPaMember_19" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SpringTxMember" xlink:label="loc_mnr_SpringTxMember_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_SpringTxMember_20" order="160" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RichfieldOhMember" xlink:label="loc_mnr_RichfieldOhMember_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_RichfieldOhMember_21" order="170" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FortMillScMember" xlink:label="loc_mnr_FortMillScMember_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_FortMillScMember_22" order="180" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ElPasoTxMember" xlink:label="loc_mnr_ElPasoTxMember_23" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_ElPasoTxMember_23" order="190" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RalcorpHoldingsIncMember" xlink:label="loc_mnr_RalcorpHoldingsIncMember_24" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_RalcorpHoldingsIncMember_24" order="200" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_TampaFlMember" xlink:label="loc_mnr_TampaFlMember_25" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstatePropertiesDomain_3" xlink:to="loc_mnr_TampaFlMember_25" order="210" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementScenarioAxis" xlink:label="loc_us-gaap_StatementScenarioAxis_26" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1" xlink:to="loc_us-gaap_StatementScenarioAxis_26" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_27" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementScenarioAxis_26" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_27" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScenarioUnspecifiedDomain" xlink:label="loc_us-gaap_ScenarioUnspecifiedDomain_27_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementScenarioAxis_26" xlink:to="loc_us-gaap_ScenarioUnspecifiedDomain_27_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FiscalYearOneMember" xlink:label="loc_mnr_FiscalYearOneMember_28" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_27" xlink:to="loc_mnr_FiscalYearOneMember_28" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FiscalYearTwoMember" xlink:label="loc_mnr_FiscalYearTwoMember_29" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScenarioUnspecifiedDomain_27" xlink:to="loc_mnr_FiscalYearTwoMember_29" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_30" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_30" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_31" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_30" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_31" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_31_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_30" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_31_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LeasedSquareFootageMember" xlink:label="loc_mnr_LeasedSquareFootageMember_32" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_31" xlink:to="loc_mnr_LeasedSquareFootageMember_32" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentalAndReimbursementRevenueMember" xlink:label="loc_mnr_RentalAndReimbursementRevenueMember_33" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_31" xlink:to="loc_mnr_RentalAndReimbursementRevenueMember_33" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RealEstateInvestmentsTextualAbstract" xlink:label="loc_mnr_RealEstateInvestmentsTextualAbstract_34" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_mnr_RealEstateInvestmentsTextualAbstract_34" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessAcquisitionAreaOfRealEstatePropertyAcquired" xlink:label="loc_mnr_BusinessAcquisitionAreaOfRealEstatePropertyAcquired_35" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_BusinessAcquisitionAreaOfRealEstatePropertyAcquired_35" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RealEstatePropertyLeased" xlink:label="loc_mnr_RealEstatePropertyLeased_36" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RealEstatePropertyLeased_36" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PercentageOfRealEstatePropertyLeased" xlink:label="loc_mnr_PercentageOfRealEstatePropertyLeased_37" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_PercentageOfRealEstatePropertyLeased_37" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RevenueAsPercentageOfAggregateRentalAndReimbursementRevenue" xlink:label="loc_mnr_RevenueAsPercentageOfAggregateRentalAndReimbursementRevenue_38" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RevenueAsPercentageOfAggregateRentalAndReimbursementRevenue_38" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RevenueAsPercentageOfAggregateRentalAndReimbursementRevenueInCurrentFiscalYear" xlink:label="loc_mnr_RevenueAsPercentageOfAggregateRentalAndReimbursementRevenueInCurrentFiscalYear_39" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RevenueAsPercentageOfAggregateRentalAndReimbursementRevenueInCurrentFiscalYear_39" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LeaseExpirationDate1" xlink:label="loc_us-gaap_LeaseExpirationDate1_40" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_LeaseExpirationDate1_40" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExtendedLeaseExpirationDate" xlink:label="loc_mnr_ExtendedLeaseExpirationDate_41" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_ExtendedLeaseExpirationDate_41" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessAcquisitionCostOfAcquireEntityPurchasePrice" xlink:label="loc_mnr_BusinessAcquisitionCostOfAcquireEntityPurchasePrice_42" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_BusinessAcquisitionCostOfAcquireEntityPurchasePrice_42" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAdjusted" xlink:label="loc_mnr_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAdjusted_43" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_BusinessAcquisitionCostOfAcquiredEntityPurchasePriceAdjusted_43" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages_44" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateFaceAmountOfMortgages_44" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages_45" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages_45" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstatePeriodIncreaseDecrease" xlink:label="loc_us-gaap_MortgageLoansOnRealEstatePeriodIncreaseDecrease_46" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_MortgageLoansOnRealEstatePeriodIncreaseDecrease_46" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessAcquisitionCostOfAcquiredEntityRefundPurchasePrice" xlink:label="loc_mnr_BusinessAcquisitionCostOfAcquiredEntityRefundPurchasePrice_47" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_BusinessAcquisitionCostOfAcquiredEntityRefundPurchasePrice_47" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MortgageBalanceRefundAsReduction" xlink:label="loc_mnr_MortgageBalanceRefundAsReduction_48" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_MortgageBalanceRefundAsReduction_48" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PurchasePriceReductionAmountRequiredToBeUsedToPayDownMortgageBalance" xlink:label="loc_mnr_PurchasePriceReductionAmountRequiredToBeUsedToPayDownMortgageBalance_49" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_PurchasePriceReductionAmountRequiredToBeUsedToPayDownMortgageBalance_49" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateInterestRate" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateInterestRate_50" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateInterestRate_50" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MortgageLoansOnRealEstateTermOfLoan" xlink:label="loc_mnr_MortgageLoansOnRealEstateTermOfLoan_51" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_MortgageLoansOnRealEstateTermOfLoan_51" order="160" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MortgageLoansOnRealEstateAmortizationPeriod" xlink:label="loc_mnr_MortgageLoansOnRealEstateAmortizationPeriod_52" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_MortgageLoansOnRealEstateAmortizationPeriod_52" order="170" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoanOnRealEstateFinalMaturityDate" xlink:label="loc_us-gaap_MortgageLoanOnRealEstateFinalMaturityDate_53" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_MortgageLoanOnRealEstateFinalMaturityDate_53" order="180" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualRentalIncome" xlink:label="loc_mnr_AnnualRentalIncome_54" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_AnnualRentalIncome_54" order="190" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualRentalIncomeAdjusted" xlink:label="loc_mnr_AnnualRentalIncomeAdjusted_55" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_AnnualRentalIncomeAdjusted_55" order="200" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetAcquiredInPlaceLeases" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetAcquiredInPlaceLeases_56" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetAcquiredInPlaceLeases_56" order="210" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PaymentsForBrokerageFees" xlink:label="loc_us-gaap_PaymentsForBrokerageFees_57" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_us-gaap_PaymentsForBrokerageFees_57" order="220" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AreaOfBuildingToBeExpanded" xlink:label="loc_mnr_AreaOfBuildingToBeExpanded_58" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_AreaOfBuildingToBeExpanded_58" order="230" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessAcquisitionCostOfPropertyExpansion" xlink:label="loc_mnr_BusinessAcquisitionCostOfPropertyExpansion_59" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_BusinessAcquisitionCostOfPropertyExpansion_59" order="240" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DescriptionOfBuildingExpansion" xlink:label="loc_mnr_DescriptionOfBuildingExpansion_60" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_DescriptionOfBuildingExpansion_60" order="250" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualRent" xlink:label="loc_mnr_AnnualRent_61" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_AnnualRent_61" order="260" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_IncreaseInAnnualRent" xlink:label="loc_mnr_IncreaseInAnnualRent_62" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_IncreaseInAnnualRent_62" order="270" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_TenantConcentrationNumberOfLeaseContracts" xlink:label="loc_mnr_TenantConcentrationNumberOfLeaseContracts_63" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_TenantConcentrationNumberOfLeaseContracts_63" order="280" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DescriptionOfRealEstatePropertyLeasedToOtherTenants" xlink:label="loc_mnr_DescriptionOfRealEstatePropertyLeasedToOtherTenants_64" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_DescriptionOfRealEstatePropertyLeasedToOtherTenants_64" order="290" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RealEstateInvestmentOfLoanAcquisitions" xlink:label="loc_mnr_RealEstateInvestmentOfLoanAcquisitions_65" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RealEstateInvestmentOfLoanAcquisitions_65" order="300" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LeaseOnRealEstateTerms" xlink:label="loc_mnr_LeaseOnRealEstateTerms_66" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_LeaseOnRealEstateTerms_66" order="310" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentPriorToExpansion" xlink:label="loc_mnr_RentPriorToExpansion_67" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RentPriorToExpansion_67" order="320" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentIncreasedToAfterExpansion" xlink:label="loc_mnr_RentIncreasedToAfterExpansion_68" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RentIncreasedToAfterExpansion_68" order="330" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentIncreasedToAfterSecondPhaseOfExpansion" xlink:label="loc_mnr_RentIncreasedToAfterSecondPhaseOfExpansion_69" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_RealEstateInvestmentsTextualAbstract_34" xlink:to="loc_mnr_RentIncreasedToAfterSecondPhaseOfExpansion_69" order="340" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/Securitiesavailableforsaledetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_us-gaap_PreferredStockMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_us-gaap_CommonStockMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_6" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLosses_8" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue_9" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAbstract_6" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLosses_10" order="30" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/Securitiesavailableforsaledetails1">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InformationByCategoryOfDebtSecurityAxis" xlink:label="loc_us-gaap_InformationByCategoryOfDebtSecurityAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" xlink:to="loc_us-gaap_InformationByCategoryOfDebtSecurityAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InformationByCategoryOfDebtSecurityAxis_2" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain" xlink:label="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InformationByCategoryOfDebtSecurityAxis_2" xlink:to="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecurityOneMember" xlink:label="loc_mnr_SecurityOneMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" xlink:to="loc_mnr_SecurityOneMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecurityTwoMember" xlink:label="loc_mnr_SecurityTwoMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" xlink:to="loc_mnr_SecurityTwoMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecurityThreeMember" xlink:label="loc_mnr_SecurityThreeMember_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" xlink:to="loc_mnr_SecurityThreeMember_6" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecurityFourMember" xlink:label="loc_mnr_SecurityFourMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" xlink:to="loc_mnr_SecurityFourMember_7" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecurityFiveMember" xlink:label="loc_mnr_SecurityFiveMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCategoriesOfInvestmentsDomain_3" xlink:to="loc_mnr_SecurityFiveMember_8" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SummaryOfRangeOfLossesAbstract" xlink:label="loc_mnr_SummaryOfRangeOfLossesAbstract_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_mnr_SummaryOfRangeOfLossesAbstract_9" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NumberOfIndividualSecurities" xlink:label="loc_mnr_NumberOfIndividualSecurities_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SummaryOfRangeOfLossesAbstract_9" xlink:to="loc_mnr_NumberOfIndividualSecurities_10" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SummaryOfRangeOfLossesAbstract_9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue_11" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SummaryOfRangeOfLossesAbstract_9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLosses_12" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AvailableForSaleSecuritiesRangeOfLossInPercentage" xlink:label="loc_mnr_AvailableForSaleSecuritiesRangeOfLossInPercentage_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SummaryOfRangeOfLossesAbstract_9" xlink:to="loc_mnr_AvailableForSaleSecuritiesRangeOfLossInPercentage_13" order="30" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/SecuritiesAvailableForSaleDetailsTextual">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_1" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_2" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DividendReinvestmentAndStockPurchasePlanMember" xlink:label="loc_mnr_DividendReinvestmentAndStockPurchasePlanMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_mnr_DividendReinvestmentAndStockPurchasePlanMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_us-gaap_CommonStockMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_6" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_us-gaap_PreferredStockMember_7" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_InvestmentInUmhCommonSharesMember" xlink:label="loc_mnr_InvestmentInUmhCommonSharesMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_3" xlink:to="loc_mnr_InvestmentInUmhCommonSharesMember_8" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecuritiesAvailableForSaleTextualAbstract" xlink:label="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AvailableForSaleSecuritiesShares" xlink:label="loc_mnr_AvailableForSaleSecuritiesShares_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_mnr_AvailableForSaleSecuritiesShares_10" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_CommonStockSharesPurchases" xlink:label="loc_mnr_CommonStockSharesPurchases_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_mnr_CommonStockSharesPurchases_11" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesAmortizedCost_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesAmortizedCost_12" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DividendReinvestmentAndStockPurchasePlanWeightedAverageCostPerShare" xlink:label="loc_mnr_DividendReinvestmentAndStockPurchasePlanWeightedAverageCostPerShare_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_mnr_DividendReinvestmentAndStockPurchasePlanWeightedAverageCostPerShare_13" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_us-gaap_PreferredStockDividendRatePercentage_14" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecurities_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_us-gaap_AvailableForSaleSecurities_15" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentOwnedBalanceShares" xlink:label="loc_us-gaap_InvestmentOwnedBalanceShares_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_us-gaap_InvestmentOwnedBalanceShares_16" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:label="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SecuritiesAvailableForSaleTextualAbstract_9" xlink:to="loc_us-gaap_InvestmentOwnedBalancePrincipalAmount_17" order="70" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/DebtDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0" xlink:to="loc_us-gaap_DebtInstrumentTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_TwoRiverCommunityBankMember" xlink:label="loc_mnr_TwoRiverCommunityBankMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3" xlink:to="loc_mnr_TwoRiverCommunityBankMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BankOfPrincetonMember" xlink:label="loc_mnr_BankOfPrincetonMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3" xlink:to="loc_mnr_BankOfPrincetonMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_6" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_6" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_6" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7" xlink:to="loc_us-gaap_PreferredStockMember_8" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7" xlink:to="loc_us-gaap_CommonStockMember_9" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConvertibleSubordinatedDebtMember" xlink:label="loc_us-gaap_ConvertibleSubordinatedDebtMember_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7" xlink:to="loc_us-gaap_ConvertibleSubordinatedDebtMember_10" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OtherEquitySecuritiesMember" xlink:label="loc_mnr_OtherEquitySecuritiesMember_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_7" xlink:to="loc_mnr_OtherEquitySecuritiesMember_11" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_12" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_12" xlink:to="loc_us-gaap_RelatedPartyDomain_13" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RelatedPartyDomain" xlink:label="loc_us-gaap_RelatedPartyDomain_13_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_12" xlink:to="loc_us-gaap_RelatedPartyDomain_13_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_UmhPropertiesMember" xlink:label="loc_mnr_UmhPropertiesMember_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_13" xlink:to="loc_mnr_UmhPropertiesMember_14" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_15" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_15" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain" xlink:label="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis_15" xlink:to="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AzPropertyMember" xlink:label="loc_mnr_AzPropertyMember_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" xlink:to="loc_mnr_AzPropertyMember_17" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FormerLoanMemphisTnPropertyMember" xlink:label="loc_mnr_FormerLoanMemphisTnPropertyMember_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" xlink:to="loc_mnr_FormerLoanMemphisTnPropertyMember_18" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NewCurrentLoanMemphisTnPropertyMember" xlink:label="loc_mnr_NewCurrentLoanMemphisTnPropertyMember_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" xlink:to="loc_mnr_NewCurrentLoanMemphisTnPropertyMember_19" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_WhiteBearLakeMnAndWinstonSalemNcPropertiesMember" xlink:label="loc_mnr_WhiteBearLakeMnAndWinstonSalemNcPropertiesMember_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" xlink:to="loc_mnr_WhiteBearLakeMnAndWinstonSalemNcPropertiesMember_20" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_CapitalOneNaMember" xlink:label="loc_mnr_CapitalOneNaMember_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RealEstateAndAccumulatedDepreciationNameOfPropertyDomain_16" xlink:to="loc_mnr_CapitalOneNaMember_21" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_CreditFacilityAxis_22" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_23" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_22" xlink:to="loc_us-gaap_CreditFacilityDomain_23" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_23_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_22" xlink:to="loc_us-gaap_CreditFacilityDomain_23_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_UnsecuredDebtMember" xlink:label="loc_us-gaap_UnsecuredDebtMember_24" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_23" xlink:to="loc_us-gaap_UnsecuredDebtMember_24" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditMember" xlink:label="loc_us-gaap_LineOfCreditMember_25" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_23" xlink:to="loc_us-gaap_LineOfCreditMember_25" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RevolvingCreditFacilityMember" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_26" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_23" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_26" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SecuredSecuritiesMarginLoansMember" xlink:label="loc_mnr_SecuredSecuritiesMarginLoansMember_27" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_23" xlink:to="loc_mnr_SecuredSecuritiesMarginLoansMember_27" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_28" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_28" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_29" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_28" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_29" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_29_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_28" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_29_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_30" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_29" xlink:to="loc_us-gaap_SubsequentEventMember_30" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DebtTextualAbstract" xlink:label="loc_mnr_DebtTextualAbstract_31" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0" xlink:to="loc_mnr_DebtTextualAbstract_31" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_32" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_32" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtInstrumentMaturityDate" xlink:label="loc_us-gaap_DebtInstrumentMaturityDate_33" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_DebtInstrumentMaturityDate_33" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LineOfCreditFacilityExpensionFeatureAmount" xlink:label="loc_mnr_LineOfCreditFacilityExpensionFeatureAmount_34" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_LineOfCreditFacilityExpensionFeatureAmount_34" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LineOfCreditFacilityBasisSpreadOnVariableRate" xlink:label="loc_mnr_LineOfCreditFacilityBasisSpreadOnVariableRate_35" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_LineOfCreditFacilityBasisSpreadOnVariableRate_35" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityFrequencyOfPaymentAndPaymentTerms" xlink:label="loc_us-gaap_LineOfCreditFacilityFrequencyOfPaymentAndPaymentTerms_36" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityFrequencyOfPaymentAndPaymentTerms_36" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityCovenantTerms" xlink:label="loc_us-gaap_LineOfCreditFacilityCovenantTerms_37" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityCovenantTerms_37" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNewMortgageLoans" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNewMortgageLoans_38" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNewMortgageLoans_38" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateRenewedAndExtendedAmount1" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateRenewedAndExtendedAmount1_39" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateRenewedAndExtendedAmount1_39" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MortgageLoansOnRealEstateInterestRateOnRefinancedAmount" xlink:label="loc_mnr_MortgageLoansOnRealEstateInterestRateOnRefinancedAmount_40" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_MortgageLoansOnRealEstateInterestRateOnRefinancedAmount_40" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MaturityDateOfRefinancedMortgageLoanOnRealEstate" xlink:label="loc_mnr_MaturityDateOfRefinancedMortgageLoanOnRealEstate_41" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_MaturityDateOfRefinancedMortgageLoanOnRealEstate_41" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateInterestRate" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateInterestRate_42" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateInterestRate_42" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LoansPayable" xlink:label="loc_us-gaap_LoansPayable_43" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LoansPayable_43" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstatePeriodIncreaseDecrease" xlink:label="loc_us-gaap_MortgageLoansOnRealEstatePeriodIncreaseDecrease_44" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_MortgageLoansOnRealEstatePeriodIncreaseDecrease_44" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SharesIssuedAsCollateral" xlink:label="loc_mnr_SharesIssuedAsCollateral_45" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_SharesIssuedAsCollateral_45" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LoansPayableFairValueDisclosure" xlink:label="loc_us-gaap_LoansPayableFairValueDisclosure_46" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LoansPayableFairValueDisclosure_46" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNumberOfLoans" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNumberOfLoans_47" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNumberOfLoans_47" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RepaymentsOfDebt" xlink:label="loc_us-gaap_RepaymentsOfDebt_48" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_RepaymentsOfDebt_48" order="160" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_49" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_49" order="170" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LineOfCreditFacilityMaturityDate" xlink:label="loc_mnr_LineOfCreditFacilityMaturityDate_50" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_LineOfCreditFacilityMaturityDate_50" order="180" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod_51" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumAmountOutstandingDuringPeriod_51" order="190" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_52" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCredit_52" order="200" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LineOfCreditFacilityAdditiionalAccordionFeature" xlink:label="loc_mnr_LineOfCreditFacilityAdditiionalAccordionFeature_53" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_mnr_LineOfCreditFacilityAdditiionalAccordionFeature_53" order="210" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet" xlink:label="loc_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_54" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet_54" order="220" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityDecreaseForgiveness1" xlink:label="loc_us-gaap_LineOfCreditFacilityDecreaseForgiveness1_55" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityDecreaseForgiveness1_55" order="230" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateDescription" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateDescription_56" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateDescription_56" order="240" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_57" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_DebtTextualAbstract_31" xlink:to="loc_us-gaap_PreferredStockDividendRatePercentage_57" order="250" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/ShareholdersEquityDetailsTextual">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems" xlink:label="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable" xlink:label="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_0" xlink:to="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_1" xlink:to="loc_us-gaap_StatementClassOfStockAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2" xlink:to="loc_us-gaap_ClassOfStockDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_2" xlink:to="loc_us-gaap_ClassOfStockDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_CommonStockMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_PreferredStockMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExcessSharesMember" xlink:label="loc_mnr_ExcessSharesMember_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_mnr_ExcessSharesMember_6" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_RedeemablePreferredStockMember" xlink:label="loc_us-gaap_RedeemablePreferredStockMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_RedeemablePreferredStockMember_7" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DummyMember" xlink:label="loc_mnr_DummyMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_mnr_DummyMember_8" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_Dummy12Member" xlink:label="loc_mnr_Dummy12Member_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_mnr_Dummy12Member_9" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesAPreferredStockMember" xlink:label="loc_us-gaap_SeriesAPreferredStockMember_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_SeriesAPreferredStockMember_10" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SeriesBPreferredStockMember" xlink:label="loc_us-gaap_SeriesBPreferredStockMember_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_3" xlink:to="loc_us-gaap_SeriesBPreferredStockMember_11" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSubsidiaryOrEquityMethodInvesteeTable_1" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_12" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_12" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_13" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_13_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_12" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_13_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DividendReinvestmentAndStockPurchasePlanMember" xlink:label="loc_mnr_DividendReinvestmentAndStockPurchasePlanMember_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_13" xlink:to="loc_mnr_DividendReinvestmentAndStockPurchasePlanMember_14" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract" xlink:label="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsidiaryOrEquityMethodInvesteeLineItems_0" xlink:to="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockSharesAuthorized" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_16" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockSharesAuthorized" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_17" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ExcessStockSharesAuthorized" xlink:label="loc_us-gaap_ExcessStockSharesAuthorized_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_ExcessStockSharesAuthorized_18" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockDividendRatePercentage" xlink:label="loc_us-gaap_PreferredStockDividendRatePercentage_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_PreferredStockDividendRatePercentage_19" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan_20" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering" xlink:label="loc_us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_PartnersCapitalAccountUnitsSoldInPublicOffering_21" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SharesPurchasedAdditionalShares" xlink:label="loc_mnr_SharesPurchasedAdditionalShares_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_mnr_SharesPurchasedAdditionalShares_22" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SaleOfStockPricePerShare" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_23" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_23" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_24" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan_24" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan_25" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan_25" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_Dividends" xlink:label="loc_us-gaap_Dividends_26" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_Dividends_26" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_27" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_27" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_PreferredStockDividendsPerShareCashPaid_28" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_PreferredStockDividendsPerShareCashPaid_28" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DividendsPayableAmountPerShare" xlink:label="loc_us-gaap_DividendsPayableAmountPerShare_29" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_DividendsPayableAmountPerShare_29" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DividendsPayableDateDeclaredDayMonthAndYear" xlink:label="loc_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_30" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_DividendsPayableDateDeclaredDayMonthAndYear_30" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DividendPayableDateToBePaidDayMonthAndYear" xlink:label="loc_us-gaap_DividendPayableDateToBePaidDayMonthAndYear_31" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_DividendPayableDateToBePaidDayMonthAndYear_31" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DividendsPayableDateOfRecordDayMonthAndYear" xlink:label="loc_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_32" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_DividendsPayableDateOfRecordDayMonthAndYear_32" order="160" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockDividendsPerShareDeclared" xlink:label="loc_us-gaap_PreferredStockDividendsPerShareDeclared_33" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_us-gaap_PreferredStockDividendsPerShareDeclared_33" order="170" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_DividendRateInPercentageOfPreferredStock" xlink:label="loc_mnr_DividendRateInPercentageOfPreferredStock_34" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_mnr_DividendRateInPercentageOfPreferredStock_34" order="180" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_CommonStockRaised" xlink:label="loc_mnr_CommonStockRaised_35" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_mnr_CommonStockRaised_35" order="190" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AmountOfDividendReinvested" xlink:label="loc_mnr_AmountOfDividendReinvested_36" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_mnr_AmountOfDividendReinvested_36" order="200" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SharesOfDividendReinvested" xlink:label="loc_mnr_SharesOfDividendReinvested_37" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ShareholdersEquityAndNoncontrollingInterestTextualAbstract_15" xlink:to="loc_mnr_SharesOfDividendReinvested_37" order="210" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/FairValueMeasurementsDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueByMeasurementFrequencyAxis" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_2" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_3" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_8" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_6" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_9" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_10" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_10" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain" xlink:label="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_10" xlink:to="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_PreferredStockMember" xlink:label="loc_us-gaap_PreferredStockMember_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11" xlink:to="loc_us-gaap_PreferredStockMember_12" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11" xlink:to="loc_us-gaap_CommonStockMember_13" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtSecuritiesMember" xlink:label="loc_us-gaap_DebtSecuritiesMember_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MajorTypesOfDebtAndEquitySecuritiesDomain_11" xlink:to="loc_us-gaap_DebtSecuritiesMember_14" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_15" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="loc_us-gaap_AvailableForSaleSecurities_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_15" xlink:to="loc_us-gaap_AvailableForSaleSecurities_16" order="0" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/SupplementalCashFlowInformationDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0" xlink:to="loc_us-gaap_DebtInstrumentTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ConvertibleSubordinatedDebenturesOneMember" xlink:label="loc_mnr_ConvertibleSubordinatedDebenturesOneMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3" xlink:to="loc_mnr_ConvertibleSubordinatedDebenturesOneMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_ConvertibleDebtMember" xlink:label="loc_us-gaap_ConvertibleDebtMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_3" xlink:to="loc_us-gaap_ConvertibleDebtMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SupplementalCashFlowInformationTextualAbstract" xlink:label="loc_mnr_SupplementalCashFlowInformationTextualAbstract_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0" xlink:to="loc_mnr_SupplementalCashFlowInformationTextualAbstract_6" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentAmount1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SupplementalCashFlowInformationTextualAbstract_6" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentAmount1_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:label="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SupplementalCashFlowInformationTextualAbstract_6" xlink:to="loc_us-gaap_DebtConversionConvertedInstrumentSharesIssued1_8" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_InterestPaid" xlink:label="loc_us-gaap_InterestPaid_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SupplementalCashFlowInformationTextualAbstract_6" xlink:to="loc_us-gaap_InterestPaid_9" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AmountOfDividendReinvested" xlink:label="loc_mnr_AmountOfDividendReinvested_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_SupplementalCashFlowInformationTextualAbstract_6" xlink:to="loc_mnr_AmountOfDividendReinvested_10" order="30" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/ContingenciesAndCommitmentsDetails">
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ContingenciesAndCommitmentsLineItems" xlink:label="loc_mnr_ContingenciesAndCommitmentsLineItems_0" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ContingenciesAndCommitmentsTable" xlink:label="loc_mnr_ContingenciesAndCommitmentsTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_mnr_ContingenciesAndCommitmentsLineItems_0" xlink:to="loc_mnr_ContingenciesAndCommitmentsTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EnergyAxis" xlink:label="loc_us-gaap_EnergyAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mnr_ContingenciesAndCommitmentsTable_1" xlink:to="loc_us-gaap_EnergyAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EnergyDomain" xlink:label="loc_us-gaap_EnergyDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EnergyAxis_2" xlink:to="loc_us-gaap_EnergyDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_EnergyDomain" xlink:label="loc_us-gaap_EnergyDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EnergyAxis_2" xlink:to="loc_us-gaap_EnergyDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AgreementOneMember" xlink:label="loc_mnr_AgreementOneMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EnergyDomain_3" xlink:to="loc_mnr_AgreementOneMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AgreementTwoMember" xlink:label="loc_mnr_AgreementTwoMember_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EnergyDomain_3" xlink:to="loc_mnr_AgreementTwoMember_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ContingenciesAndCommitmentsAxis" xlink:label="loc_mnr_ContingenciesAndCommitmentsAxis_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mnr_ContingenciesAndCommitmentsTable_1" xlink:to="loc_mnr_ContingenciesAndCommitmentsAxis_6" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ContingenciesAndCommitmentsDomain" xlink:label="loc_mnr_ContingenciesAndCommitmentsDomain_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_mnr_ContingenciesAndCommitmentsAxis_6" xlink:to="loc_mnr_ContingenciesAndCommitmentsDomain_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ContingenciesAndCommitmentsDomain" xlink:label="loc_mnr_ContingenciesAndCommitmentsDomain_7_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_mnr_ContingenciesAndCommitmentsAxis_6" xlink:to="loc_mnr_ContingenciesAndCommitmentsDomain_7_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_CommitmentBulidingMember" xlink:label="loc_mnr_CommitmentBulidingMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsDomain_7" xlink:to="loc_mnr_CommitmentBulidingMember_8" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_CommitmentBulidingOneMember" xlink:label="loc_mnr_CommitmentBulidingOneMember_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsDomain_7" xlink:to="loc_mnr_CommitmentBulidingOneMember_9" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_CreationDateAxis" xlink:label="loc_us-gaap_CreationDateAxis_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mnr_ContingenciesAndCommitmentsTable_1" xlink:to="loc_us-gaap_CreationDateAxis_10" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefaultFinancialStatementsDateMember" xlink:label="loc_us-gaap_DefaultFinancialStatementsDateMember_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreationDateAxis_10" xlink:to="loc_us-gaap_DefaultFinancialStatementsDateMember_11" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DefaultFinancialStatementsDateMember" xlink:label="loc_us-gaap_DefaultFinancialStatementsDateMember_11_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreationDateAxis_10" xlink:to="loc_us-gaap_DefaultFinancialStatementsDateMember_11_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FiscalTwoThousandFourteenMember" xlink:label="loc_mnr_FiscalTwoThousandFourteenMember_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefaultFinancialStatementsDateMember_11" xlink:to="loc_mnr_FiscalTwoThousandFourteenMember_12" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_FiscalTwoThousandFifteenMember" xlink:label="loc_mnr_FiscalTwoThousandFifteenMember_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefaultFinancialStatementsDateMember_11" xlink:to="loc_mnr_FiscalTwoThousandFifteenMember_13" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ContingenciesAndCommitmentsTextualAbstract" xlink:label="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsLineItems_0" xlink:to="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NumberOfIndustrialPropertiesCommittedToBeAcquiredByCompany" xlink:label="loc_mnr_NumberOfIndustrialPropertiesCommittedToBeAcquiredByCompany_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_NumberOfIndustrialPropertiesCommittedToBeAcquiredByCompany_15" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NumberOfMortgagedIndustrialPropertiesCommittedToAcquire" xlink:label="loc_mnr_NumberOfMortgagedIndustrialPropertiesCommittedToAcquire_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_NumberOfMortgagedIndustrialPropertiesCommittedToAcquire_16" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PurchaseOfIndustrialBuilding" xlink:label="loc_mnr_PurchaseOfIndustrialBuilding_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_PurchaseOfIndustrialBuilding_17" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AdditionalSquareFootCommittedToBeAddedToExistingBuildings" xlink:label="loc_mnr_AdditionalSquareFootCommittedToBeAddedToExistingBuildings_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_AdditionalSquareFootCommittedToBeAddedToExistingBuildings_18" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PeriodForNewConstructions" xlink:label="loc_mnr_PeriodForNewConstructions_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_PeriodForNewConstructions_19" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LandSubjectToGroundLeases" xlink:label="loc_us-gaap_LandSubjectToGroundLeases_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_LandSubjectToGroundLeases_20" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PercentageOfBuildingAreaLeased" xlink:label="loc_mnr_PercentageOfBuildingAreaLeased_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_PercentageOfBuildingAreaLeased_21" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_SaleLeasebackTransactionAnnualRentalRevenue" xlink:label="loc_mnr_SaleLeasebackTransactionAnnualRentalRevenue_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_SaleLeasebackTransactionAnnualRentalRevenue_22" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_AcquisitionCosts" xlink:label="loc_us-gaap_AcquisitionCosts_23" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_AcquisitionCosts_23" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExpectedAcquisitionCostsToBeIncurredInNextFiscalPeriod" xlink:label="loc_mnr_ExpectedAcquisitionCostsToBeIncurredInNextFiscalPeriod_24" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_ExpectedAcquisitionCostsToBeIncurredInNextFiscalPeriod_24" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessCombinationPurchasePriceAllocationPropertyPlantAndEquipment" xlink:label="loc_mnr_BusinessCombinationPurchasePriceAllocationPropertyPlantAndEquipment_25" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_BusinessCombinationPurchasePriceAllocationPropertyPlantAndEquipment_25" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnticipatedPeriodForCloserOfTransactions" xlink:label="loc_mnr_AnticipatedPeriodForCloserOfTransactions_26" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_AnticipatedPeriodForCloserOfTransactions_26" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_DepositAssets" xlink:label="loc_us-gaap_DepositAssets_27" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_DepositAssets_27" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NumberOfCommitments" xlink:label="loc_mnr_NumberOfCommitments_28" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_NumberOfCommitments_28" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages_29" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateCarryingAmountOfMortgages_29" order="140" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateMinimumInterestRateInRange" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateMinimumInterestRateInRange_30" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateMinimumInterestRateInRange_30" order="150" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateMaximumInterestRateInRange" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateMaximumInterestRateInRange_31" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateMaximumInterestRateInRange_31" order="160" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MortgageLoansOnRealEstateWeightedAverageInterestRate" xlink:label="loc_mnr_MortgageLoansOnRealEstateWeightedAverageInterestRate_32" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_MortgageLoansOnRealEstateWeightedAverageInterestRate_32" order="170" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstatePeriodicPaymentTerms" xlink:label="loc_us-gaap_MortgageLoansOnRealEstatePeriodicPaymentTerms_33" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_MortgageLoansOnRealEstatePeriodicPaymentTerms_33" order="180" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LoanProcessingFee" xlink:label="loc_us-gaap_LoanProcessingFee_34" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_us-gaap_LoanProcessingFee_34" order="190" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RefundedCommitmentAndLoanProcessingFees" xlink:label="loc_mnr_RefundedCommitmentAndLoanProcessingFees_35" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_RefundedCommitmentAndLoanProcessingFees_35" order="200" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NumberOfExistingBuildingsToBeExpandedByCompany" xlink:label="loc_mnr_NumberOfExistingBuildingsToBeExpandedByCompany_36" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_NumberOfExistingBuildingsToBeExpandedByCompany_36" order="210" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NumberOfBuildingsLeased" xlink:label="loc_mnr_NumberOfBuildingsLeased_37" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_NumberOfBuildingsLeased_37" order="220" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExpansionCosts" xlink:label="loc_mnr_ExpansionCosts_38" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_ExpansionCosts_38" order="230" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExpectedRemainingExpansionCosts" xlink:label="loc_mnr_ExpectedRemainingExpansionCosts_39" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_ExpectedRemainingExpansionCosts_39" order="240" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExpectedExpansionCostPerUnitArea" xlink:label="loc_mnr_ExpectedExpansionCostPerUnitArea_40" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_ExpectedExpansionCostPerUnitArea_40" order="250" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExtensionInLeasePeriodAfterBuildingExpansions" xlink:label="loc_mnr_ExtensionInLeasePeriodAfterBuildingExpansions_41" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_ExtensionInLeasePeriodAfterBuildingExpansions_41" order="260" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_IncreasedRentAfterCompletionOfExpansions" xlink:label="loc_mnr_IncreasedRentAfterCompletionOfExpansions_42" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mnr_ContingenciesAndCommitmentsTextualAbstract_14" xlink:to="loc_mnr_IncreasedRentAfterCompletionOfExpansions_42" order="270" use="optional"  />
</definitionLink>
<definitionLink xlink:type="extended" xlink:role="http://www.mreic.com/role/SubsequentEventsDetails">
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_0" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_1" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_SubsequentEventTable_1" order="0" use="optional"  xbrldt:contextElement="segment" xbrldt:closed="true" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_2" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_1" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_2" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_3" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_2" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_3" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_3_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_2" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_3_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_4" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_3" xlink:to="loc_us-gaap_SubsequentEventMember_4" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_1" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain" xlink:label="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6_Default" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis_5" xlink:to="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6_Default" order="0" use="optional" />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_MonroeNcMember" xlink:label="loc_mnr_MonroeNcMember_7" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_MonroeNcMember_7" order="0" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_CocoaFlMember" xlink:label="loc_mnr_CocoaFlMember_8" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MortgageLoansOnRealEstateNamePropertyTypeDomain_6" xlink:to="loc_mnr_CocoaFlMember_8" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PurchaseOfIndustrialBuilding" xlink:label="loc_mnr_PurchaseOfIndustrialBuilding_9" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_PurchaseOfIndustrialBuilding_9" order="10" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PercentageOfOccupancy" xlink:label="loc_mnr_PercentageOfOccupancy_10" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_PercentageOfOccupancy_10" order="20" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_LeaseExpirationDate1" xlink:label="loc_us-gaap_LeaseExpirationDate1_11" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_LeaseExpirationDate1_11" order="30" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_PeriodForNewConstructions" xlink:label="loc_mnr_PeriodForNewConstructions_12" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_PeriodForNewConstructions_12" order="40" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_LeaseOnRealEstateTerms" xlink:label="loc_mnr_LeaseOnRealEstateTerms_13" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_LeaseOnRealEstateTerms_13" order="50" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_ExtensionInLeasePeriodAfterBuildingExpansions" xlink:label="loc_mnr_ExtensionInLeasePeriodAfterBuildingExpansions_14" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_ExtensionInLeasePeriodAfterBuildingExpansions_14" order="60" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_BusinessAcquisitionCostOfPropertyExpansion" xlink:label="loc_mnr_BusinessAcquisitionCostOfPropertyExpansion_15" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_BusinessAcquisitionCostOfPropertyExpansion_15" order="70" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_RentExpenseIncreasingPercentage" xlink:label="loc_mnr_RentExpenseIncreasingPercentage_16" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_RentExpenseIncreasingPercentage_16" order="80" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_NewExpansionRentOnLease" xlink:label="loc_mnr_NewExpansionRentOnLease_17" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_NewExpansionRentOnLease_17" order="90" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_OldRentOnLease" xlink:label="loc_mnr_OldRentOnLease_18" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_OldRentOnLease_18" order="100" use="optional"  />
<loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2014/elts/us-gaap-2014-01-31.xsd#us-gaap_OperatingLeasesRentExpenseNet" xlink:label="loc_us-gaap_OperatingLeasesRentExpenseNet_19" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_OperatingLeasesRentExpenseNet_19" order="110" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedBaseRentOnLease" xlink:label="loc_mnr_AnnualizedBaseRentOnLease_20" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_AnnualizedBaseRentOnLease_20" order="120" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_InitialRentalRevenuePerSquareFoot" xlink:label="loc_mnr_InitialRentalRevenuePerSquareFoot_21" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_InitialRentalRevenuePerSquareFoot_21" order="130" use="optional"  />
<loc xlink:type="locator" xlink:href="mnr-20140630.xsd#mnr_AnnualizedBaseRentPerSquare" xlink:label="loc_mnr_AnnualizedBaseRentPerSquare_22" />
<definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_mnr_AnnualizedBaseRentPerSquare_22" order="140" use="optional"  />
</definitionLink>
</linkbase>


