mucus Hear it!

mucus definition

mu·cus (myo̵̅o̅′kəs)

noun

the thick, slimy secretion of the mucous membranes, that moistens and protects them

Etymology: L: see meek, muck

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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