n. 痛风石

[医] 白垩块, 痛风石(痛风病之结块)

[ noun ]
a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout
<noun.substance>

Chalkstone \Chalk"stone`\, n.
1. A mass of chalk.

As chalkstones . . . beaten in sunder. --Isa. xxvii.
9.

2. (Med.) 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.