tophus

Definitions

  • WordNet 3.6
    • n tophus an incrustation that forms on the teeth and gums
    • n tophus a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout
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Webster's Revised Unabridged Dictionary
    • Tophus (Min) Calcareous tufa.
    • Tophus (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.
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Century Dictionary and Cyclopedia
    • n tophus Calc tufa.
    • n tophus A concretion of calcareous matter which forms on the cartilaginous surface of the joints, and on the pinna of the ear, in gout; a gouty deposit.
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Chambers's Twentieth Century Dictionary
    • n Tophus tō′fus a gouty deposit
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Etymology

Webster's Revised Unabridged Dictionary
NL.: cf. F. tophus, a mineral concretion in the joint. See Toph
Chambers's Twentieth Century Dictionary
L., 'sandstone.'