Med. an abnormal mineral deposit, as of calcium carbonate, about the joints, on the roots of the teeth, etc., in a person who has the gout; chalkstone
Origin of tophusL, tufa
- A deposit of urates in the skin and tissue around a joint or in the external ear, occurring in gout. Also called chalkstone .
- A concretion of mineral salts and organic matter deposited on the surface of the teeth.
Origin of tophusLatin tōphus tufa
Latin, meaning "stone".