单词	proteoglycan
释义	proteoglycan noun pro·​teo·​gly·​can ˌprō-tē-ə-ˈglī-ˌkan  : any of a class of glycoproteins of high molecular weight that are found especially in the extracellular matrix of connective tissue Word History Etymology proteo- + glycan First Known Use 1967, in the meaning defined above Medical Definition proteoglycan noun pro·​teo·​gly·​can ˌprōt-ē-ə-ˈglī-ˌkan  : any of a class of glycoproteins of high molecular weight that are found in the extracellular matrix of connective tissue, are made up mostly of carbohydrate consisting of various polysaccharide side chains linked to a protein, and resemble polysaccharides rather than proteins in their properties
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