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English definition of “adulterer”

adulterer

noun [C]     /əˈdʌl.tə.rər/ US  /-t̬ɚ.ɚ/ formal
a married person who has sex with someone who is not their wife or husband: Her husband was a compulsive adulterer.Infidelity in relationships
(Definition of adulterer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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