mucin

(myū'sĭn)
n.
Any of a group of glycoproteins found especially in the secretions of mucous membranes.

mucinous mu'cin·ous adj.

Viscous mucoprotein secreted in the saliva and throughout the intestinal tract; the main constituent of mucus.

n

A mucopolysaccharide, the chief ingredient of mucus. Mucin is present in most glands that secrete mucus and is the lubricant that protects body surfaces from friction or erosion.

A mucopolysaccharide or glycoprotein which is the chief constituent of mucus.

• m. clot test — the adding of acetic acid to normal synovial fluid, which causes clot formation. The compactness of the clot and the clarity of the supernatant fluid are the criteria on which the result is based.