hyaluronic acidPronunciation: /ˌhʌɪəljʊəˈrɒnɪk/Definition of hyaluronic acid noun [mass noun] Biochemistry a viscous fluid carbohydrate present in connective tissue, synovial fluid, and the aqueous and vitreous humours of the eye. Origin: 1930s: hyaluronic from a blend of hyaloid and uronic acidhyaluronic acid in other Oxford dictionaries Definition of hyaluronic acid in the US English dictionary
