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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

This sugar is commonly found in mucins, the molecules that form mucus.

From Science Daily • Mar. 16, 2026

This species produces especially sticky mucus, which is related to its diet as a predator of arthropods.

From Science Daily • Feb. 14, 2026

At the beginning of winter most of us came down with a bad cough that shook our ribs and rattled our heads, which responded by leaking thick mucus into our scarves and onto our sleeves.

From "The Marrow Thieves" by Cherie Dimaline




Vocabulary lists containing mucus


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