: 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
The salt water opens the nasal passages by clearing out thick and dried mucus.
—
Angelica Bottaro, Verywell Health, 29 May 2025
His cast includes manatees who use flatulence to control their buoyancy and cave dwelling fungus gnats that create beautiful, illuminated fly-traps from the mucus lit by their bioluminescent butts.
—Tony Maglio, HollywoodReporter, 27 May 2025
After placing the silicone tip just inside your baby’s nose, this aspirator uses a gentle suction to remove mucus so your baby can breathe with ease.
—Laura Lu, Parents, 22 May 2025
Sleep Position Your sleep position can disrupt the flow of mucus.
—Rachael Zimlich, Bsn, Rn, Verywell Health, 25 Apr. 2025
See All Example Sentences for mucus
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Angelica Bottaro, Verywell Health, 29 May 2025
His cast includes manatees who use flatulence to control their buoyancy and cave dwelling fungus gnats that create beautiful, illuminated fly-traps from the mucus lit by their bioluminescent butts.
—Tony Maglio, HollywoodReporter, 27 May 2025
After placing the silicone tip just inside your baby’s nose, this aspirator uses a gentle suction to remove mucus so your baby can breathe with ease.
—Laura Lu, Parents, 22 May 2025
Sleep Position Your sleep position can disrupt the flow of mucus.
—Rachael Zimlich, Bsn, Rn, Verywell Health, 25 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 4 Jun. 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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