'Coition' definitions:

Definition of 'coition'

From: WordNet
noun
The act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur [syn: sexual intercourse, intercourse, sex act, copulation, coitus, coition, sexual congress, congress, sexual relation, relation, carnal knowledge]

Definition of 'Coition'

From: GCIDE
  • Coition \Co*i"tion\, n. [L. coitio, fr. coire to come together; co- + ire to go.] A coming together; sexual intercourse; copulation. --Grew. [1913 Webster]