/ ˈɔːgæzəm; NAmE ˈɔːrg-/ noun
[ U , C ] the moment during sexual activity when feelings of sexual pleasure are at their strongest :
to achieve / reach orgasm
to have an orgasm
••
WORD ORIGIN
late 17th cent.: from French orgasme , or from modern Latin orgasmus , from Greek orgasmos , from organ swell or be excited.