coitus

[koh-i-tuh s] /ˈkoʊ ɪ təs/
noun
1.
sexual intercourse, especially between a man and a woman.
Origin
1705-15; < Latin: a coming together, uniting, sexual intercourse, equivalent to coi- (see coition) + -tus suffix of v. action
Related forms
coital, adjective
coitally, adverb
postcoital, adjective
postcoitally, adverb
precoital, adjective
British Dictionary definitions for coitus

coitus

/ˈkəʊɪtəs/
noun
1.
technical terms for sexual intercourse
Derived Forms
coital, adjective
Word Origin
C18 coitus: from Latin: a uniting, from coīre to meet, from īre to go
Word Origin and History for coitus
n.

"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.

coitus in Medicine

coitus co·i·tus (kō'ĭ-təs, kō-ē'-)
n.
Sexual union between a male and a female involving insertion of the penis into the vagina. Also called coition, copulation.

co'i·tal adj.