: an act of pouring a liquid on something or someone (as in baptism)
Word History
Etymology
borrowed from Late Latin affūsiōn-, affūsiō "act of pouring on," from Latin *affūd- (variant stem of affundere "to pour on or into," from ad- ad- + fundere "to pour") + -tiōn-, -tiō, suffix of action nouns — more at found entry 5