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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

"Intelectin-2 first reinforces the mucus barrier itself, and then if that barrier is breached, it can control the bacteria and restrict their growth," Kiessling says.

From Science Daily • Mar. 16, 2026

Moist environments such as gut mucus, wound fluids, or the urinary tract provide surfaces where bacteria could spread through swashing, even when their flagella are not functioning effectively.

From Science Daily • Mar. 13, 2026

I breathe in again, though it definitely makes me feel like the hot dog I ate earlier is going to join ump guy’s blob of mucus beside me.

From "Fast Pitch" by Nic Stone




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