I.a coupling, joining, connecting, uniting (several times in Cic. and Quint.).
I. Prop.: “atomorum inter se (with complexiones and adhaesiones),” Cic. Fin. 1, 6, 19; cf.: “copulatio rerum et coagmentatio naturae,” id. N. D. 2, 46, 119. —
II. Trop., of social union: “primi congressus copulationesque,” Cic. Fin. 1, 20, 69; cf. “of marriage, Cod. Th. 9, 42, 2.—Of words: ordo rerum, et copulatio,” Quint. 7, 10, 8; cf. id. 11, 2, 37: “inoffensa vocum,” id. 1, 10, 23 al.: “syllabarum, verborum inter se,” id. 8, 3, 16.