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hex·os·a·mine hek-'säs-ə-.mēn n an amine (as glucosamine) derived from a hexose by replacement of hydroxyl by the amino group
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n.
the amino derivative of a hexose sugar. The two most important hexosamines are glucosamine and galactosamine.
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hex·os·amine (hek-sōsґə-mēn) any of a class of amino sugars derived from hexoses.Medical dictionary. 2011.