| NOUN | substance | mucopolysaccharide | complex polysaccharides containing an amino group |
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| Meaning | Complex polysaccharides containing an amino group; occur chiefly as components of connective tissue. | |
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| Narrower | hyaluronic acid | A viscous mucopolysaccharide found in the connective tissue space and the synovial fluid of movable joints and the humors of the eye |
| Broader | polysaccharide, polyose | Any of a class of carbohydrates whose molecules contain chains of monosaccharide molecules |