Chalkstone
Pronunciation : Chalk"stone`
Part of Speech : n.
Definition : 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.
Source : Webster's Unabridged Dictionary, 1913