mucin

Any of a group of glycoproteins found especially in the secretions of mucous membranes.

A nitrogenous body found in all connective tissue, and the chief constituent of mucus. It is a glutinous substance, soluble in weak alkalis, but not in water.

See mucedin.

Any of a class of high molecular weight glycoproteins which are contained in mucus, and give to the latter secretion its peculiar ropy character. They are found in all the secretions from mucous glands, and also between the fibers of connective tissue, as in tendons. They form viscous solutions and serve to provide lubrication for movement within body cavities, and some protection of surfaces. See Illust. of Demilune.

Any of several glycoproteins found in mucus

a nitrogenous substance found in mucous secretions; a lubricant that protects body surfaces