Definition of mucus
English to English noun - protective secretion of the mucus membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
source: WordNet 3.0 - A viscid fluid secreted by mucous membranes, which it serves to moisten and protect. It covers the lining membranes of all the cavities which open externally, such as those of the mouth, nose, lungs, intestinal canal, urinary passages, etc.
source: Webster 1913
Visual Synonyms 
Nearby Word
mucus, mus, mucose, mucksy, mucosa, mancus, musaceous, mush, muss, much as, moschus, musk, much, muck, muce, muse, musa, macacus, mughouse, meniscus
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