coitus interruptuscoitus in·ter·rup·tus
sexual intercourse in which the penis is withdrawn before ejaculation in an effort to avoid the deposit of semen in the vagina
Origin of coitus interruptusModL, interrupted coitus
Sexual intercourse deliberately interrupted by withdrawal of the penis from the vagina prior to ejaculation.
Origin of coitus interruptusNew Latin : Latin coitus, coitus + Latin interruptus, past participle of interrumpere, to interrupt.