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sinusitis

[sahy-nuh-sahy-tis] /ˌsaɪ nəˈsaɪ tɪs/
noun, Pathology.
1.
inflammation of a sinus or the sinuses.
Origin of sinusitis
1900-1905
From New Latin, dating back to 1900-05; See origin at sinus, -itis
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for sinusitis

sinusitis

/ˌsaɪnəˈsaɪtɪs/
noun
1.
inflammation of the membrane lining a sinus, esp a nasal sinus
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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Word Origin and History for sinusitis
n.

"inflammation of the sinuses," 1896; see sinus + -itis.

Online Etymology Dictionary, © 2010 Douglas Harper
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sinusitis in Medicine

sinusitis si·nus·i·tis (sī'nə-sī'tĭs)
n.
Inflammation of the mucous membrane of a sinus, especially of the paranasal sinuses.

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