/ ˈkɒndɒm; NAmE ˈkɑːndəm/ noun
1.
( BrE also sheath ) (also NAmE formal or technical prophy·lac·tic ) a thin rubber covering that a man wears over his penis during sex to stop a woman from becoming pregnant or to protect against disease
2.
female condom a thin rubber device that a woman wears inside her vagina during sex to prevent herself from becoming pregnant
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WORD ORIGIN
early 18th cent.: of unknown origin; often said to be named after a physician who invented it, but no such person has been traced.