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Coitus is a term used primarily in medical texts and, according to the Oxford English Dictionary, comes from the Latin phrase “in coitu” which refers to a meeting or uniting of two bodies or planet or a sexual conjunction.

Coitus refers to penile-vaginal intercourse or penetration. The term is often better known in the context of another term, coitus interruptus, also known as the withdrawal method where the penis is withdrawn prior to ejaculation in the hopes of avoiding conception. While it may be commonly practiced, this is not an effective method of contraception.

Also Known As: intercourse, penile-vaginal penetration, penetration play

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