antilithic,a.andn.Med.|æntɪˈlɪθɪk| [f. anti- 3 + Gr. λιθικ-ός, f. λίθ-ος stone.] A.adj. Tending to counteract stone in the bladder. B.n. A medicine so employed. 1853in Mayne Exp. Lex.1869Eng.Mech. 10 Dec. 312/2 Its medicinal properties are antacid, antilithic.