<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd http://xbrl.org/2005/xbrldt http://www.xbrl.org/2005/xbrldt-2005.xsd" xmlns:cik0000034273="http://www.virtus.com/20250930">
	<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" />
	<link: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" />
	<link: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" />
	<link: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" />
	<link: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" />
	<link:arcroleRef arcroleURI="http://www.xbrl.org/2009/arcrole/dep-concept-deprecatedConcept" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/arcrole/deprecated-2009-12-16.xsd#dep-concept-deprecatedConcept" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable3" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable3" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable5" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable5" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable7" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable7" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable9" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable9" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable11" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable11" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable13" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable13" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable15" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable15" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable17" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable17" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable19" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable19" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable21" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable21" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable23" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable23" />
	<link:roleRef roleURI="http://www.virtus.com/20250930/role/RRRiskTable25" xlink:type="simple" xlink:href="c485bpos-20260122.xsd#RRRiskTable25" />
	<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SeriesOnly" />
	<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/ShareholderFeesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderFeesData" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/OperatingExpensesData" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#OperatingExpensesData" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#PerformanceMeasureOnly" />
	<link:roleRef roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#RiskOnly" />
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain" xlink:label="EntityDomain" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021173Member" xlink:label="S000021173Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021173Member" order="1.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021177Member" xlink:label="S000021177Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021177Member" order="2.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000025925Member" xlink:label="S000025925Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000025925Member" order="3.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021180Member" xlink:label="S000021180Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021180Member" order="4.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021172Member" xlink:label="S000021172Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021172Member" order="5.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021170Member" xlink:label="S000021170Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021170Member" order="6.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021181Member" xlink:label="S000021181Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021181Member" order="7.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000061485Member" xlink:label="S000061485Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000061485Member" order="8.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000070232Member" xlink:label="S000070232Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000070232Member" order="9.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000072656Member" xlink:label="S000072656Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000072656Member" order="10.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000064774Member" xlink:label="S000064774Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000064774Member" order="11.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_S000021179Member" xlink:label="S000021179Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="EntityDomain" xlink:to="S000021179Member" order="12.0" />
	</link:definitionLink>
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060273Member" xlink:label="C000060273Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060273Member" order="1.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060275Member" xlink:label="C000060275Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060275Member" order="2.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060276Member" xlink:label="C000060276Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060276Member" order="3.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199781Member" xlink:label="C000199781Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199781Member" order="4.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060285Member" xlink:label="C000060285Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060285Member" order="5.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060287Member" xlink:label="C000060287Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060287Member" order="6.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060288Member" xlink:label="C000060288Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060288Member" order="7.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199782Member" xlink:label="C000199782Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199782Member" order="8.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000077895Member" xlink:label="C000077895Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000077895Member" order="9.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000077896Member" xlink:label="C000077896Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000077896Member" order="10.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000077897Member" xlink:label="C000077897Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000077897Member" order="11.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199784Member" xlink:label="C000199784Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199784Member" order="12.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060294Member" xlink:label="C000060294Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060294Member" order="13.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060296Member" xlink:label="C000060296Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060296Member" order="14.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060297Member" xlink:label="C000060297Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060297Member" order="15.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199783Member" xlink:label="C000199783Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199783Member" order="16.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060269Member" xlink:label="C000060269Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060269Member" order="17.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060271Member" xlink:label="C000060271Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060271Member" order="18.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060272Member" xlink:label="C000060272Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060272Member" order="19.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000148845Member" xlink:label="C000148845Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000148845Member" order="20.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060263Member" xlink:label="C000060263Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060263Member" order="21.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060264Member" xlink:label="C000060264Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060264Member" order="22.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060265Member" xlink:label="C000060265Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060265Member" order="23.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199780Member" xlink:label="C000199780Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199780Member" order="24.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060298Member" xlink:label="C000060298Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060298Member" order="25.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060299Member" xlink:label="C000060299Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060299Member" order="26.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060300Member" xlink:label="C000060300Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060300Member" order="27.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000176670Member" xlink:label="C000176670Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000176670Member" order="28.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199118Member" xlink:label="C000199118Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199118Member" order="29.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199119Member" xlink:label="C000199119Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199119Member" order="30.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199120Member" xlink:label="C000199120Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199120Member" order="31.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000199121Member" xlink:label="C000199121Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000199121Member" order="32.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000223339Member" xlink:label="C000223339Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000223339Member" order="33.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000223337Member" xlink:label="C000223337Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000223337Member" order="34.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000223338Member" xlink:label="C000223338Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000223338Member" order="35.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000229070Member" xlink:label="C000229070Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000229070Member" order="36.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000229072Member" xlink:label="C000229072Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000229072Member" order="37.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000229069Member" xlink:label="C000229069Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000229069Member" order="38.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000209770Member" xlink:label="C000209770Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000209770Member" order="39.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000209771Member" xlink:label="C000209771Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000209771Member" order="40.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000209768Member" xlink:label="C000209768Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000209768Member" order="41.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000209769Member" xlink:label="C000209769Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000209769Member" order="42.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060291Member" xlink:label="C000060291Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060291Member" order="43.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000060293Member" xlink:label="C000060293Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000060293Member" order="44.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000211088Member" xlink:label="C000211088Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000211088Member" order="45.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_C000224195Member" xlink:label="C000224195Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000224195Member" order="46.0" />
	</link:definitionLink>
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/PerformanceMeasureOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_PerformanceMeasureDomain" xlink:label="PerformanceMeasureDomain" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_FTWilshire5000Index3Member" xlink:label="FTWilshire5000Index3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="FTWilshire5000Index3Member" order="1.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell1000GrowthIndex3Member" xlink:label="Russell1000GrowthIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell1000GrowthIndex3Member" order="2.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell1000ValueIndex3Member" xlink:label="Russell1000ValueIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell1000ValueIndex3Member" order="3.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MSCIUSAHighDividendYieldIndexnet3Member" xlink:label="MSCIUSAHighDividendYieldIndexnet3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="MSCIUSAHighDividendYieldIndexnet3Member" order="4.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_RussellMidcapIndex3Member" xlink:label="RussellMidcapIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="RussellMidcapIndex3Member" order="5.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_RussellMidcapGrowthIndex3Member" xlink:label="RussellMidcapGrowthIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="RussellMidcapGrowthIndex3Member" order="6.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell2000Index3Member" xlink:label="Russell2000Index3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell2000Index3Member" order="7.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell2000GrowthIndex3Member" xlink:label="Russell2000GrowthIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell2000GrowthIndex3Member" order="8.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell2000ValueIndex3Member" xlink:label="Russell2000ValueIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell2000ValueIndex3Member" order="9.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell2500Index3Member" xlink:label="Russell2500Index3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell2500Index3Member" order="10.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell2500GrowthIndex3Member" xlink:label="Russell2500GrowthIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell2500GrowthIndex3Member" order="11.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell2500ValueIndex3Member" xlink:label="Russell2500ValueIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell2500ValueIndex3Member" order="12.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MSCIAllCountryWorldIndexnet3Member" xlink:label="MSCIAllCountryWorldIndexnet3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="MSCIAllCountryWorldIndexnet3Member" order="13.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MSCIAllCountryWorldGrowthIndexnet3Member" xlink:label="MSCIAllCountryWorldGrowthIndexnet3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="MSCIAllCountryWorldGrowthIndexnet3Member" order="14.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_BloombergUSAggregateBondIndex3Member" xlink:label="BloombergUSAggregateBondIndex3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="BloombergUSAggregateBondIndex3Member" order="15.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_BloombergUSAggregateBondIndex310100Member" xlink:label="BloombergUSAggregateBondIndex310100Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="BloombergUSAggregateBondIndex310100Member" order="16.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MSCIAllCountryWorldIndexnet310100Member" xlink:label="MSCIAllCountryWorldIndexnet310100Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="MSCIAllCountryWorldIndexnet310100Member" order="17.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MSCIAllCountryWorldexUSASMIDCapIndexnet3Member" xlink:label="MSCIAllCountryWorldexUSASMIDCapIndexnet3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="MSCIAllCountryWorldexUSASMIDCapIndexnet3Member" order="18.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MSCIAllCountryWorldexUSASMIDCapIndexnet310100Member" xlink:label="MSCIAllCountryWorldexUSASMIDCapIndexnet310100Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="MSCIAllCountryWorldexUSASMIDCapIndexnet310100Member" order="19.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Russell1000GrowthIndex310100Member" xlink:label="Russell1000GrowthIndex310100Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="Russell1000GrowthIndex310100Member" order="20.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_VirtusTacticalAllocationFundLinkedBenchmark3Member" xlink:label="VirtusTacticalAllocationFundLinkedBenchmark3Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="VirtusTacticalAllocationFundLinkedBenchmark3Member" order="21.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_VirtusTacticalAllocationFundLinkedBenchmark310100Member" xlink:label="VirtusTacticalAllocationFundLinkedBenchmark310100Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="PerformanceMeasureDomain" xlink:to="VirtusTacticalAllocationFundLinkedBenchmark310100Member" order="22.0" />
	</link:definitionLink>
	<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/rr/role/RiskOnly">
		<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AllRisksMember" xlink:label="AllRisksMember" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_PrincipalRisks2Member" xlink:label="PrincipalRisks2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="PrincipalRisks2Member" order="1.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_EquitySecuritiesRisk2Member" xlink:label="EquitySecuritiesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="EquitySecuritiesRisk2Member" order="2.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_SectorFocusedInvestingRisk2Member" xlink:label="SectorFocusedInvestingRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="SectorFocusedInvestingRisk2Member" order="3.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_FocusedInvestmentRiskTechnology-RelatedRisk2Member" xlink:label="FocusedInvestmentRiskTechnology-RelatedRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="FocusedInvestmentRiskTechnology-RelatedRisk2Member" order="4.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MarketVolatilityRisk2Member" xlink:label="MarketVolatilityRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="MarketVolatilityRisk2Member" order="5.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_DepositaryReceiptsRisk2Member" xlink:label="DepositaryReceiptsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="DepositaryReceiptsRisk2Member" order="6.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_ForeignInvestingRisk2Member" xlink:label="ForeignInvestingRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ForeignInvestingRisk2Member" order="7.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_CurrencyRateRisk2Member" xlink:label="CurrencyRateRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="CurrencyRateRisk2Member" order="8.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_GrowthStocksRisk2Member" xlink:label="GrowthStocksRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GrowthStocksRisk2Member" order="9.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_LargeMarketCapitalizationCompaniesRisk2Member" xlink:label="LargeMarketCapitalizationCompaniesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="LargeMarketCapitalizationCompaniesRisk2Member" order="10.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_LimitedNumberofInvestmentsRisk2Member" xlink:label="LimitedNumberofInvestmentsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="LimitedNumberofInvestmentsRisk2Member" order="11.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_RedemptionRisk2Member" xlink:label="RedemptionRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="RedemptionRisk2Member" order="12.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_SmallandMediumMarketCapitalizationCompaniesRisk2Member" xlink:label="SmallandMediumMarketCapitalizationCompaniesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="SmallandMediumMarketCapitalizationCompaniesRisk2Member" order="13.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_FocusedInvestmentRiskIndustrial-RelatedRisk2Member" xlink:label="FocusedInvestmentRiskIndustrial-RelatedRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="FocusedInvestmentRiskIndustrial-RelatedRisk2Member" order="14.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MediumMarketCapitalizationCompaniesRisk2Member" xlink:label="MediumMarketCapitalizationCompaniesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="MediumMarketCapitalizationCompaniesRisk2Member" order="15.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_SmallMarketCapitalizationCompaniesRisk2Member" xlink:label="SmallMarketCapitalizationCompaniesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="SmallMarketCapitalizationCompaniesRisk2Member" order="16.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_ValueStocksRisk2Member" xlink:label="ValueStocksRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ValueStocksRisk2Member" order="17.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_EmergingMarketRisk2Member" xlink:label="EmergingMarketRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="EmergingMarketRisk2Member" order="18.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_SanctionsRisk2Member" xlink:label="SanctionsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="SanctionsRisk2Member" order="19.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_ConvertibleSecuritiesRisk2Member" xlink:label="ConvertibleSecuritiesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ConvertibleSecuritiesRisk2Member" order="20.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_ESGRisk2Member" xlink:label="ESGRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="ESGRisk2Member" order="21.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_GeographicConcentrationRisk2Member" xlink:label="GeographicConcentrationRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GeographicConcentrationRisk2Member" order="22.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_PreferredStocksRisk2Member" xlink:label="PreferredStocksRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="PreferredStocksRisk2Member" order="23.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_CreditRisk2Member" xlink:label="CreditRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="CreditRisk2Member" order="24.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_InterestRateRisk2Member" xlink:label="InterestRateRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="InterestRateRisk2Member" order="25.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_AllocationRisk2Member" xlink:label="AllocationRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="AllocationRisk2Member" order="26.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_High-YieldHigh-RiskFixedIncomeSecuritiesJunkBondsRisk2Member" xlink:label="High-YieldHigh-RiskFixedIncomeSecuritiesJunkBondsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="High-YieldHigh-RiskFixedIncomeSecuritiesJunkBondsRisk2Member" order="27.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_AffiliatedFundandETFRisk2Member" xlink:label="AffiliatedFundandETFRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="AffiliatedFundandETFRisk2Member" order="28.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_BankLoanRisk2Member" xlink:label="BankLoanRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="BankLoanRisk2Member" order="29.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_DerivativesRisk2Member" xlink:label="DerivativesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="DerivativesRisk2Member" order="30.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Long-TermMaturitiesDurationsRisk2Member" xlink:label="Long-TermMaturitiesDurationsRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="Long-TermMaturitiesDurationsRisk2Member" order="31.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_Mortgage-BackedandAsset-BackedSecuritiesRisk2Member" xlink:label="Mortgage-BackedandAsset-BackedSecuritiesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="Mortgage-BackedandAsset-BackedSecuritiesRisk2Member" order="32.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MunicipalSecuritiesRisk2Member" xlink:label="MunicipalSecuritiesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="MunicipalSecuritiesRisk2Member" order="33.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_MutualFundandETFInvestingRisk2Member" xlink:label="MutualFundandETFInvestingRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="MutualFundandETFInvestingRisk2Member" order="34.0" />
		<link:loc xlink:type="locator" xlink:href="c485bpos-20260122.xsd#cik0000034273_GovernmentSecuritiesRisk2Member" xlink:label="GovernmentSecuritiesRisk2Member" />
		<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="AllRisksMember" xlink:to="GovernmentSecuritiesRisk2Member" order="35.0" />
	</link:definitionLink>
</link:linkbase>