Mucus-Mucous | Commonly Confused Words
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Mucus vs. Mucous

Mucus

/ˈmjuːkəs/
A thick, slippery substance produced by the body's glands to protect and moisten surfaces

Examples:

The doctor explained how mucus protects our lungs.Seasonal allergies often lead to excess mucus production.Mucus traps dust and microbes entering the nasal cavity.

Synonyms:

Antonyms:

Mucous

A slippery substance produced by membranes in the body, often found in the nose and throat.

Examples:

The snail leaves a mucous trail across the pavement.Mucous membranes line various cavities within the body.During allergies, mucous production can significantly increase.

Synonyms:

Antonyms:

Ways to tell them apart:

etymology
  • Mucus is a noun, while mucous is an adjective.
  • Mucus is the slimy substance you blow out of your nose.
  • Mucous refers to the membranes that produce mucus.
  • Remember that mucous membranes secrete mucus.
  • Think of the ous in mucous as indicating its function, like other adjectives.
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