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Word of the Day Tuesday, June 9, 2026

mucous

/ˈmjuːkəs/ noun · British & US
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What does mucous mean?

noun

A thick, protective fluid produced by the mucous membranes in the body, serving to lubricate and protect the respiratory, gastrointestinal, and other tracts. It is composed of water, mucin, and other substances.

Example

"The doctor examined the patient's mucous to determine the cause of the infection."

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

Synonyms for mucous

Rhymes with mucous

Etymologically related