Juglans regia

Juglans regia
Juglone Ju"glone, n. [L. juglans the walnut + -one.] (Chem.) A yellow crystalline substance ({C10H6O3}) resembling quinone, extracted from green shucks of the walnut ({Juglans regia}); -- called also {nucin}. Chemically, it is 5-hydroxy-1,4-naphthalenedione. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Juglans regia — Walnut Wal nut, n. [OE. walnot, AS. wealh hnutu a Welsh or foreign nut, a walnut; wealh foreign, strange, n., a Welshman, Celt (akin to OHG. Walh, properly, a Celt, from the name of a Celtic tribe, in L. Volcae) + hnutu a nut; akin to D. walnoot …   The Collaborative International Dictionary of English

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  • Juglans regia — Juglandin Jug lan*din, n. [L. juglans, andis, a walnut: cf. F. juglandine.] (Chem.) An extractive matter contained in the juice of the green shucks of the walnut ({Juglans regia}). It is used medicinally as an alterative, and also as a black hair …   The Collaborative International Dictionary of English

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  • Juglans regia — Madeira Ma*dei ra, n. [Pg., the Island Madeira, properly, wood, fr. L. materia stuff, wood. The island was so called because well wooded. See {Matter}.] A rich wine made on the Island of Madeira. [1913 Webster] A cup of Madeira, and a cold capon… …   The Collaborative International Dictionary of English

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