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sinusitis

sinusitis definition - medical

si·nus·i·tis (sīˌnə-sīˈtĭs)

noun

Inflammation of the mucous membrane of a sinus, especially of the paranasal sinuses.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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