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Noun hyaluronic acid has 1 sense
  1. hyaluronic acid - a viscous mucopolysaccharide found in the connective tissue space and the synovial fluid of movable joints and the humors of the eye; a cementing and protective substance
    --1 is a kind of     mucopolysaccharide
    --1 is a substance of
     synovia, synovial fluid; vitreous humor, vitreous humour, vitreous body
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