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Definitions

mucus

[myoo-kuhs] / ˈmyu kəs /
NOUN
secretion
Synonyms




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Born with cystic fibrosis, a genetic disorder that causes mucus to become thick and sticky, she has just 9% lung function.

From BBC • Mar. 24, 2026

CF is a genetic condition that can particularly affect someone's digestive system, as well as their lungs, because their body produces a thick, sticky mucus that coats the organs.

From BBC • Mar. 20, 2026

Reduced levels may weaken the mucus barrier, while excessive amounts could eliminate beneficial bacteria that normally inhabit the gut.

From Science Daily • Mar. 16, 2026

The microbes, Akkermansia muciniphila and Bacteroides thetaiotaomicron, break down the protective mucus layer that lines the colon.

From Science Daily • Feb. 19, 2026

George, Florah and I resorted to eating our own mucus.

From "Kaffir Boy: An Autobiography" by Mark Mathabane




Vocabulary lists containing mucus


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