tophus

Definitions of tophus
1

n a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout

Synonyms:
chalkstone
Type of:
urate
a salt of uric acid

n an incrustation that forms on the teeth and gums

Synonyms:
calculus, tartar
Type of:
crust, encrustation, incrustation
a hard outer layer that covers something

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