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sinusitis

American  
[sahy-nuh-sahy-tis] / ˌsaɪ nəˈsaɪ tɪs /

noun

Pathology.

  1. inflammation of a sinus or the sinuses.

sinusitis British  
/ 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

Etymology

Origin of sinusitis

From New Latin, dating back to 1900–05; see origin at sinus, -itis

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Sinusitis is a bit of a “fad-based specialty,” Dr. James N. Palmer, director of rhinology at the University of Pennsylvania, said with a chuckle.

From New York Times • May 12, 2011

Sinusitis, for instance, may require an antibiotic, which means getting a prescription.

From US News • Nov. 24, 2010

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.