a highly viscous mucopolysaccharide that holds cells together, lubricates body tissue, and blocks the spread of microorganisms: it is found in the skin, the vitreous humor of the eye, and the synovial fluid of the joints
Origin:
< hyal(o)- + Gr ouron, urine + -ic
See hyaluronic acid in American Heritage Dictionary 4
noun
A gellike aminoglycan that is found in the tissue space, the synovial fluid of joints, and the vitreous humor of the eyes and acts as a binding, lubricating, and protective agent.