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[toh-fuh s] /ˈtoʊ fəs/
noun, plural tophi
[toh-fahy] /ˈtoʊ faɪ/ (Show IPA).
a calcareous concretion formed in the soft tissue about a joint, in the pinna of the ear, etc., especially in gout; a gouty deposit.
Origin of tophus
1545-55; < Latin tōphus, tōfus tufa
Related forms
[tuh-fey-shuh s] /təˈfeɪ ʃəs/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for tophaceous


noun (pl) -phi (-faɪ)
(pathol) a deposit of sodium urate in the helix of the ear or surrounding a joint: a diagnostic of advanced or chronic gout Also called chalkstone
Derived Forms
tophaceous (təʊˈfeɪʃəs) adjective
Word Origin
C16: from Latin, variant of tōfustufa, tuff
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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tophaceous in Medicine

tophaceous to·pha·ceous (tə-fā'shəs)

  1. Of or characteristic of a tophus.

  2. Sandy; gritty.

tophus to·phus (tō'fəs)
n. pl. to·phi (-fī)

  1. A deposit of urates in the skin and tissue around a joint or in the external ear.

  2. Dental calculus; tartar.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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