Copulate :: Copulate (a.) Joining subject and predicate; copulative.
Copulate :: Copulate (v. i.) To unite in sexual intercourse; to come together in the act of generation.
Copulation :: Copulation (n.) The act of coupling or joining; union; conjunction.
Copulation :: Copulation (n.) The coming together of male and female in the act of generation; sexual union; coition.
Copulative :: Copulative (a.) Serving to couple, unite, or connect; as, a copulative conjunction like and..