tophus

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. an incrustation that forms on the teeth and gums
• Syn:
tartar, calculus
• Hypernyms:
crust, incrustation, encrustation
2. a deposit of urates around a joint or in the external ear;
diagnostic of advanced or chronic gout
• Syn:
chalkstone
• Hypernyms:
urate

• Từ đồng nghĩa / Synonyms:
  tartar, calculus, chalkstone