s]
| sexual intercourse, esp. between a man and a woman. |

coitus co·i·tus (kō'ĭ-təs, kō-ē'-)
n.
Sexual union between a male and a female involving insertion of the penis into the vagina. Also called coition, copulation.
postcoital post·co·i·tal (pōst-kō'ĭ-tl, -kō-ēt'l)
adj.
Following coitus.