mucus

noun

mu·​cus ˈmyü-kəs How to pronounce mucus (audio)
: 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
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Run a cool-mist humidifier in their room to combat dry air and help break up excess mucus. Korin Miller, SELF, 30 Oct. 2024 This includes resting to give your body time to recover, staying hydrated to help thin mucus for easier expulsion, and using over-the-counter medications, such as cough suppressants or pain relievers, to manage symptoms. Jake Parks, Discover Magazine, 22 Oct. 2024 Yes, the congestion aid with the commercials featuring the giant, green mucus man. Melissa Willets, Parents, 28 Sep. 2024 Excess mucus in the back of the throat (known as post-nasal drip) causes these glands to swell, leading to the pebble-like appearance of the back of the throat.2 A wide range of health conditions and factors cause this immune reaction. Mark Gurarie, Health, 21 Sep. 2024 See all Example Sentences for mucus 

Word History

Etymology

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-.

First Known Use

1597, in the meaning defined above

Time Traveler
The first known use of mucus was in 1597

Dictionary Entries Near mucus

Cite this Entry

“Mucus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucus. Accessed 5 Nov. 2024.

Kids Definition

mucus

noun
mu·​cus ˈmyü-kəs How to pronounce mucus (audio)
: a slippery sticky substance produced especially by mucous membranes which it moistens and protects

Medical Definition

mucus

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

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