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rheumatoid

[roo-muh-toid]
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adjective
  1. resembling rheumatism.
  2. rheumatic.
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Sometimes rheu·ma·toi·dal [roo-muh-toi-dl] /ˌru məˈtɔɪ dl/.

Origin of rheumatoid

1855–60; < Greek rheumat- (stem of rheûma; see rheum) + -oid
Related formsrheu·ma·toi·dal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for rheumatoid

rheumatoid

adjective
  1. (of the symptoms of a disease) resembling rheumatism
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Derived Formsrheumatoidally, adverb
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

Word Origin and History for rheumatoid

adj.

1847, from Greek rheumat-, stem of rheuma "a discharge from the body" (see rheum) + -oid.

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Online Etymology Dictionary, © 2010 Douglas Harper

rheumatoid in Medicine

rheumatoid

(rōōmə-toid′)
adj.
  1. Of or resembling rheumatism.
  2. Suffering from rheumatism.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.