Met"al*line (?), a. [Cf. F. métallin.] (Chem.) (a) Pertaining to, or resembling, a metal; metallic; as, metalline properties. (b) Impregnated with metallic salts; chalybeate; as, metalline water. [R.]

Met"al*line (? or ?), n. (Chem.) A substance of variable composition, but resembling a soft, dark-colored metal, used in the bearings of machines for obviating friction, and as a substitute for lubricants.