lithagogue,a.andn.Path.|ˈlɪθəgɒg| Also 9 erron.lithogogue. [f.Gr. λίθ-ος stone + ἀγωγός drawing forth.] a.adj. Having the power to expel calculi from the kidneys or bladder. b.n. A medicine supposed to have this power. 1844Hoblyn Dict.Med. Terms, Lithagoga,..Lithagogues.1850Ogilvie has adj. and n.