: 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
Sleep Position Your sleep position can disrupt the flow of mucus.
—
Rachael Zimlich, Bsn, Rn, Verywell Health, 25 Apr. 2025
Blame it on post-nasal drip, that lovely sensation of mucus sliding down the back of your throat.
—Angela Haupt, Time, 2 May 2025
Cyanosis, or a blueish tint to the skin and mucus membranes, caused by inadequate oxygen in the blood.
—Mary Walrath-Holdridge, USA Today, 17 Apr. 2025
The resulting flow of nasal mucus is the nose’s effort to restore its salty nature.
—Scott Lafee, San Diego Union-Tribune, 15 Apr. 2025
See All Example Sentences for mucus
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Rachael Zimlich, Bsn, Rn, Verywell Health, 25 Apr. 2025
Blame it on post-nasal drip, that lovely sensation of mucus sliding down the back of your throat.
—Angela Haupt, Time, 2 May 2025
Cyanosis, or a blueish tint to the skin and mucus membranes, caused by inadequate oxygen in the blood.
—Mary Walrath-Holdridge, USA Today, 17 Apr. 2025
The resulting flow of nasal mucus is the nose’s effort to restore its salty nature.
—Scott Lafee, San Diego Union-Tribune, 15 Apr. 2025
See All Example Sentences for mucus
Cite this Entry
“Mucus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mucus. Accessed 22 May. 2025.
Copy CitationKids Definition
mucus
noun
mu·cus
ˈmyü-kəs 
: a slippery sticky substance produced especially by mucous membranes which it moistens and protects
Medical Definition
mucus
noun
mu·cus
ˈmyü-kəs
: a viscid slippery secretion that is usually rich in mucins and is produced by mucous membranes which it moistens and protects
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