▪ I.† ˈamnic(ke,a.1Obs.—0 [ad. L. amnic-us, f.amn-is a river: see -ic.] Of or belonging to a river. 1623in Cockeram.1656in Blount Glossogr. ▪ II.ˈamnic,a.2 [f.Gr. ἀµνί-ον + -ic.] = amniotic a. 1855Ramsbotham Obstet.Surg. 16 It contains..a free acid known as amnic acid.