n.
Pronunciation: ə - ' d ə l-t( ə -)r ē
Function: noun
Inflected Form: plural -ter · ies
Etymology: Middle English, alteration of avoutrie, from Anglo-French avulterie, from Latin adulterium, from adulter adulterer, back-formation from adulterare
Date: 15th century
: voluntary sexual intercourse between a married man and someone other than his wife or between a married woman and someone other than her husband also : an act of adultery