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Meaning of mannitol

man•ni•tol

Pronunciation: (man'i-tôl", -tol"), [key]
— n.
  1. a white, crystalline, sweetish, water-soluble, carbohydrate alcohol, CH(OH), occurring in three optically different forms, the common one being found in the manna of the ash Fraxinus ornus and in other plants: used chiefly in the manufacture of resins, electrolytic condensers for radios, plasticizers, and mannitol hexanitrate, and as a pill excipient.
  2. the substance used as an osmotic diuretic to reduce intraocular and intracranial pressures.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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