[ proh-tee-oh-glahy-kan ]
/ ˌproʊ ti oʊˈglaɪ kæn /

noun Biochemistry.

a macromolecule composed of a polysaccharide joined to a polypeptide and forming the ground substance of connective tissue.

Origin of proteoglycan

1969; prote(in) + -o- + glyc- + -an, variant of -ane Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for proteoglycan

[ prō′tē-ō-glīkăn′, -kən ]


Any of various mucopolysaccharides that are bound to protein chains in covalent complexes and occur in the extracellular matrix of connective tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.