Tophi

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Tophus \To"phus\, n.; pl. {Tophi}. [NL.: cf. F. tophus a mineral
     concretion in the joint. See {Toph}.] [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.
        [1913 Webster]
  
     2. (Min.) Calcareous tufa.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  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)]

From WordNet (r) 2.0 [wn]:

  tophi
       See {tophus}