Found 2 items, similar to tophus.
English → English (WordNet) Definition: tophus 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)]
English → English (gcide) Definition: Tophus 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]