tophus

[ toh-fuhs ]

Phonetic (Standard)IPA

noun

, Pathology.

, plural to·phi [toh, -fahy].

a calcareous concretion formed in the soft tissue about a joint, in the pinna of the ear, etc., especially in gout; a gouty deposit.

tophus

/ ˈtəʊfəs; təʊˈfeɪʃəs /

pathol a deposit of sodium urate in the helix of the ear or surrounding a joint: a diagnostic of advanced or chronic gout Also calledchalkstone

Origin of tophus¹

1545–55; < Latin tōphus, tōfus tufa

Origin of tophus¹

C16: from Latin, variant of tōfus tufa , tuff

In the time of the kings of Rome the stones were squared, and were of tufa, lapis ruber, tophus.

This flux is composed of equal portions of iron slag, white tophus, and salt.

April 18, 2024petrichor

[pet-ri-kawr]

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