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<!-- Created: Fri Mar 06 21:26:51 UTC 2026 -->  
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  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/> 
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  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>     
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>   
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  <definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/PvpAdjustmentsOnly" xlink:type="extended">  
    <loc xlink:type="locator" xlink:label="ecd_EqtyAwrdsAdjsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_EqtyAwrdsAdjsMember"/>     
    <loc xlink:type="locator" xlink:label="gabc_PensionAdjustmentsPensionValueInSummaryCompensationTableMember" xlink:href="gabc-20251231.xsd#gabc_PensionAdjustmentsPensionValueInSummaryCompensationTableMember"/>   
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ecd_EqtyAwrdsAdjsMember" xlink:to="gabc_PensionAdjustmentsPensionValueInSummaryCompensationTableMember" order="1" xbrldt:closed="true"/>  
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  <definitionLink xlink:role="http://germanamerican.com/role/AdditionalDimensions" xlink:type="extended"/>  
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