# mucous

/ˈmjukəs/ (US) · /mjˈuːkəs/ (UK) · CEFR C1 · Adjective

Source: https://englishreference.com/word/mucous
Updated: 2026-05-28

## Definition

relating to mucus, which is the thick, slippery liquid your body makes to protect and lubricate parts like your nose and throat.

For teachers: relating to or consisting of mucus, a viscous, slippery secretion produced by mucous membranes. Typically used attributively to describe glands, membranes, or secretions.

## Examples

- The doctor checked the patient's mucous membranes for signs of infection.
- The body produces mucous to trap dust and bacteria before they can enter the lungs.
- In many amphibians, the skin acts as a mucous membrane, allowing for the exchange of gases and the absorption of moisture from the surrounding environment.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.