Chalk :: Chalk (n.) A soft, earthy substance, of a white, grayish, or yellowish white color, consisting of calcium carbonate, and having the same composition as common limestone..
Chalk :: Chalk (n.) Finely prepared chalk, used as a drawing implement; also, by extension, a compound, as of clay and black lead, or the like, used in the same manner. See Crayon..
Chalkstone :: Chalkstone (n.) A chalklike concretion, consisting mainly of urate of sodium, found in and about the small joints, in the external ear, and in other situations, in those affected with gout; a tophus..
Chalky :: Chalky (a.) Consisting of, or resembling, chalk; containing chalk; as, a chalky cliff; a chalky taste..