- sexual intercourse, especially between a man and a woman.
Origin of coitus
- technical terms for sexual intercourse
Word Origin for coitus
"copulation," 1713, scientific Latin, from Latin coitus "a meeting together; sexual union," past participle of coire, from com- "together" (see co-) + ire "come, go," (see ion). In Middle English as coite (early 15c.). Used in English in general senses of "meeting, uniting," and also of magnetic force, planetary conjunction, etc., before sexual sense came to predominate.
- Sexual union between a male and a female involving insertion of the penis into the vagina.coition copulation