proteoglycan
pro te o gly can |ˌprōtēəˈglīˌkan ˌproʊdiəˈɡlaɪkæn | ▶noun Biochemistry a compound consisting of a protein bonded to glycosaminoglycan groups, present esp. in connective tissue.
proteoglycan |ˌprəʊtɪəʊˈglʌɪkan | ▶noun Biochemistry a compound consisting of a protein bonded to mucopolysaccharide groups, present especially in connective tissue.