Tartarous \Tar"tar*ous\, a. [Cf. F. tartareux.] Containing tartar; consisting of tartar, or partaking of its qualities; tartareous. Tartarous \Tar"tar*ous\, a. Resembling, or characteristic of, a Tartar; ill-natured; irritable. The Tartarous moods of common men. --B. Jonson.