Copulation is a word for sex — a more scientific way of saying "sexual intercourse."

You can use this word to describe the sexual practices of both humans and animals. Zoologists need to make sure there is copulation among endangered animals such as pandas. Stray animals like cats engage in a lot of copulation, which is why there are so many cats. If your female dog is not fixed and copulates at the park, you might have puppies on the way soon.

Definitions of copulation
  1. noun
    the act of engaging in sexual intercourse
    synonyms: carnal knowledge, coition, coitus, congress, intercourse, relation, sex act, sexual congress, sexual intercourse, sexual relation
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    the act of depriving a woman of her virginity (especially by rupturing the hymen through sexual intercourse)
    ass, nookie, nooky, piece of ass, piece of tail, roll in the hay, screw, screwing, shag, shtup
    slang for sexual intercourse
    hank panky
    illicit sexual intercourse
    the act of inserting the penis into a partner's vagina or anus
    criminal congress, unlawful carnal knowledge
    forbidden or tabu sexual intercourse between individuals
    extramarital sex, free love
    sexual intercourse between individuals who are not married to one another
    sexual intercourse between persons too closely related to marry (as between a parent and a child)
    type of:
    sex, sex activity, sexual activity, sexual practice
    activities associated with sexual intercourse
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