<?xml version="1.0" encoding="UTF-8"?>
<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">
  <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/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" />
  <link:roleRef roleURI="http://www.bankofengland.co.uk/data/xbrl/md/role/fws/insurance/imo/2025-10-02/tab/MO.03.03.01.01/1" xlink:type="simple" xlink:href="mo.03.03.01.01.xsd#role1" />
  <link:definitionLink xlink:role="http://www.bankofengland.co.uk/data/xbrl/md/role/fws/insurance/imo/2025-10-02/tab/MO.03.03.01.01/1" xlink:type="extended">
    <link:loc xlink:href="../../../../../../dict/met/met.xsd#boemd_si7306" xlink:label="loc_boemd_si7306" xlink:type="locator" />
    <link:loc xlink:href="../../../../../../dict/met/met.xsd#boemd_si7304" xlink:label="loc_boemd_si7304" xlink:type="locator" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1.0" xlink:from="loc_boemd_si7306" xlink:to="loc_boemd_si7304" />
    <link:loc xlink:href="http://www.eurofiling.info/eu/fr/xbrl/ext/model.xsd#hyp" xlink:label="loc_hyp" xlink:type="locator" />
    <link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="2.0" xlink:from="loc_boemd_si7306" xlink:to="loc_hyp" xbrldt:closed="true" xbrldt:contextElement="scenario" />
  </link:definitionLink>
</link:linkbase>
