Mannite — A white crystalline substance of a sweet taste obtained from a so-called manna, the dried sap of the flowering ash (Fraxinus ornus); -- called also mannitol, and hydroxy hexane. Cf. Dulcite.
Mannite — A sweet white efflorescence from dried fronds of kelp, especially from those of the Laminaria saccharina, or devil's apron.
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