mucus

noun
mu·​cus | \ ˈmyü-kəs How to pronounce mucus (audio) \

Definition of mucus

: a viscid slippery secretion that is usually rich in mucins and is produced by mucous membranes which it moistens and protects

Examples of mucus in a Sentence

Recent Examples on the Web Experts attribute the spread of H5N1 to the migration of wild birds, which pass the virus through saliva, mucus and droppings. NBC News, 16 Apr. 2022 On the video feed that day, Katija saw a fist-size, glowing orb with a flicking tail, surrounded by a cloud of mucus the size of a billowing trash bag. The New Yorker, 15 Apr. 2022 The larvacean resembles a tiny tadpole and lives inside a palatial bubble of mucus that can reach up to a meter long. New York Times, 3 Apr. 2022 An intranasal vaccine could do this by stimulating the immune system in the mucus of our noses. Megha Satyanarayana, Scientific American, 17 Feb. 2022 When administered through a fine mist, this harmless viral vector stimulates IgA production in nasal mucus and supports systemic immunity throughout the respiratory system. William A. Haseltine, Forbes, 31 Jan. 2022 According to the Mayo Clinic, one of the first signs to look for are changes in cervical mucus, such as an increase in clear, wet, and stretchy discharge. Sara Lindberg, SELF, 21 Dec. 2021 Who would have guessed that carrying my mucus in my pocket all day could be so stylish? Washington Post, 24 Feb. 2022 While that’s happening, your airways boost the production of mucus and that makes breathing even more of a struggle. Kimberly Goad, SELF, 21 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mucus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of mucus

1597, in the meaning defined above

History and Etymology for mucus

borrowed from Latin mūcus, muccus "nasal discharge," perhaps going back to *moukos, o-grade derivative of Indo-European *(s)muk- "nasal discharge," *(s)meuk- "undo, loosen, wipe off" — more at myxo-

Note: See note at myxo-.

Learn More About mucus

Dictionary Entries Near mucus

muculent

mucus

mud

See More Nearby Entries 

Statistics for mucus

Last Updated

28 Apr 2022

Cite this Entry

“Mucus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucus. Accessed 17 May. 2022.

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More Definitions for mucus

mucus

noun
mu·​cus | \ ˈmyü-kəs How to pronounce mucus (audio) \

Kids Definition of mucus

: a slippery thick sticky substance that coats, protects, and moistens the linings of body passages and spaces (as of the nose, lungs, and intestines)

mucus

noun
mu·​cus | \ ˈmyü-kəs How to pronounce mucus (audio) \

Medical Definition of mucus

: a viscid slippery secretion that is usually rich in mucins and is produced by mucous membranes which it moistens and protects

More from Merriam-Webster on mucus

Nglish: Translation of mucus for Spanish Speakers

Britannica English: Translation of mucus for Arabic Speakers

Britannica.com: Encyclopedia article about mucus

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