chalkstone

Chalk"stone`, n. 1. A mass of chalk. As chalkstones . . . beaten in sunder. Isa. xxvii. 9. 2. (Med.) Defn: 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.

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