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Word of the Day Tuesday, June 9, 2026

mucus

/mjuːkəs/ noun · British & US
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What does mucus mean?

noun

A thick, protective fluid produced by the mucous membranes in the body, often associated with illness or infection. It can also refer to a thick, sticky substance produced by plants or other organisms.

Example

"The doctor examined the patient's mucus to determine the cause of their cough."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for mucus

Antonyms of mucus

Rhymes with mucus

Etymologically related