| Tophus (n.) One of the mineral concretions about the joints, and in other situations, occurring chiefly in gouty persons. They consist usually of urate of sodium |
| Tophus (n.) Calcareous tufa. |
| tartar calculus tophus | an incrustation that forms on the teeth and gums |
| tophus chalkstone | a deposit of urates around a joint or in the external ear, diagnostic of advanced or chronic gout |