copulation

n. sexual intercourse, coupling, mating

In biology, mating is the pairing of opposite-sex or hermaphroditic internal fertilization animals for copulation and, in social animals, also to raise their offspring. Mating methods include random mating, disassortative mating, assortative mating, or a mating pool. In some birds, for example, it includes nest-building and feeding offspring. The human practice of making domesticated animals mate and of artificially inseminating them is part of animal husbandry.Copulation is the union of the sex organs of two sexually reproducing animals for insemination and subsequent internal fertilization. The two individuals may be of opposite sexes or hermaphroditic, as is the case with, for example, snails.
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Copulation /cop·u·la·tion/ sexual union; the transfer of the sperm from male to female; usually applied to the mating process in nonhuman animals. [more]Copulation - Community and Resources

Noun
1. 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
(synonym) sexual intercourse, intercourse, sex act, coitus, coition, sexual congress, congress, sexual relation, relation, carnal knowledge
(hypernym) sexual activity, sexual practice, sex, sex activity
(hyponym) defloration
(part-meronym) insemination
(derivation) copulate, mate, pair, couple

n. copulation, sexual intercourse