coitus

(also coition/ kEU5IFn; ko`IFEn/) n [U] (medical or fml 医或文) sexual intercourse 性交.

cohesive, cohesively, cohesiveness, cohort, COI, coif, coiffeur, coiffure, coil, coin, coinage, coincide, coincide with, coincidence, coincident, coincidental, coincidentally, coins, coir, coital, coke, coke (also Coke), col, cola, cola (also kola), cola-nut (also kola-nut), colander, colander (also cullender), cold, cold chisel, cold cream, cold cuts, cold frame, cold snap, cold sore, cold storage, cold sweat, cold war, cold-blooded, cold-hearted,