early 15c., "to join," from Latin copulatus, past participle of copulare "join together, couple, bind, link, unite," from copula "band, tie, link," from PIE *ko-ap-, from *ko(m)- "together" + *ap- (1) "to take, reach" (see apt). Sexual sense attested from 1630s. Related: Copulated; copulating.
例文
1. Whales take twenty-four hours to copulate .
クジラの交尾には24時間かかります。
2.During the time she is paired to a male,the female allows no other males to copulate with her.
雌と雄がペアになった場合、雌は他の雄との交尾を許さない。
3.Then the hybrids are allowed to self- copulate naturally,and several lines are established.