Definitions

1. adjective

relating to or resembling mucus; consisting of, or containing, mucus

“The doctor examined the mucous membranes in her patient’s throat.”

2. noun

a thick, protective fluid produced by mucous membranes, especially in the respiratory and gastrointestinal tracts

“Coughing up mucous can be a sign of a cold or flu.”

3. noun

a membrane that produces mucus, especially in the respiratory and gastrointestinal tracts

“The mucous lining in the nose helps to filter out dust and other particles.”