A saccharine exudation from Fraxinus ornus, flowering ash, a tree of the Mediterranean shores, used as a laxative, especially for children. It is available as m. cannellata, a flake m.; m. in lacrimis, m. in tears or small flakes; and m. communis or m. in sortis, m. in sorts. [L., fr. G. m., fr. Heb. man]
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man·na 'man-ə n
1) the sweetish dried exudate of a European ash (esp. Fraxinus ornus) that contains mannitol and has been used as a laxative and demulcent
2) a product that is similar to manna and is excreted by a scale insect (Trabutina mannipara) feeding on the tamarisk
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man·na (manґə) [L.] the dried saccharine exudation from the flowering ash tree, Fraxinus ornus; its chief constituents are mannitol, mucilage, and sugar, and it has been used as a laxative.Medical dictionary. 2011.