I.a watering, irrigating: “quos (pulvinos) irrigationes abluunt,” Varr. R. R. 1, 35, 1: “agrorum,” Cic. Off. 2, 4, 14: “agri,” id. de Sen. 15, 53.— With gen. subj.: “irrigatione fluminis diluere aliquid,” Plin. 36, 12, 17, § 81.—Also transf., refreshment: “irrigation ossium tuorum,” Vulg. Prov. 3, 8.
irrĭgātĭo (inr- ), ōnis, f. irrigo,