to·phus /ˈtofəs/
 痛風結節


 to·phus /ˈtofəs/ 名詞
 (複tophi)痛風石,松石(牙石或涎石)


 To·phus n.; pl. Tophi    [Written also tofus.]
 1. Med. One of the mineral concretions about the joints, and in other situations, occurring chiefly in gouty persons. They consist usually of urate of sodium; when occurring in the internal organs they are also composed of phosphate of calcium.
 2. Min. Calcareous tufa.

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 tophus
      n 1: a deposit of urates around a joint or in the external ear;
           diagnostic of advanced or chronic gout [syn: chalkstone]
      2: an incrustation that forms on the teeth and gums [syn: tartar,
          calculus]
      [also: tophi (pl)]