condom

noun2

1. •
   A flexible sleeve made of latex or other impermeable material such as polyurethane or sheepskin, worn over an erect penis during sexual intercourse as a contraceptive or as a way to prevent the spread of STIs during PIV, anal, or oral.

   • However, substantial proportions of participants preferred the nonlatex condom or reported that they would recommend its use to others. — 2009
2. •
   Any of various forms of flexible sleeve or barrier, variously shaped for either penetrative or receptive body parts, made of latex or other impermeable material such as polyurethane or sheepskin, worn (by anyone with) during sexual activity to prevent pregnancy or the spread of STIs.