co·i·tus
noun/ˈkɔɪtəs/, /ˈkəʊɪtəs/
/ˈkəʊɪtəs/
[uncountable] (medical or formal)- sexual intercourse (= the physical activity of sex)
性交 Word Originmid 19th cent.: from Latin, from coire ‘go together’, from co- ‘together’ + ire ‘go’.
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