Definitions

1. noun

A thick, viscous fluid produced by the mucous membranes, especially in the respiratory and gastrointestinal tracts, to trap dust, microorganisms, and other foreign particles.

“The doctor examined the patient’s throat to see if it was infected with a virus, and said that the mucus in her lungs was a sign of a bad cold.”

2. verb

To produce or secrete mucus.

“After eating the spicy curry, she began to mucus from her nose.”