DICT.TW Dictionary Taiwan

 co·i·tus /ˈkoətəs, koˈi, ˈkɔɪtəs/
 交媾;性交

 co·itus /ˈkoətəs, koˈɪt-/ 名詞
 交媾,性交

 coitus
      n : 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, coition,
           sexual congress, congress, sexual relation, relation,
           carnal knowledge]