Definitions
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A yellow crystalline substance, C10H6O2, analogous to quinone, obtained by oxidizing naphthalene with chromic acid.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry Either of two
isomers ofpolycyclic aromatic ketones derived fromnaphthalene .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a fat-soluble vitamin that helps in the clotting of blood
Etymologies
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Examples
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In the very same year Doisy reported that, together with his associates, he had succeeded not only in determining the chemical structure of vitamin K - it was found to be a naphthoquinone derivate - but also in synthetically preparing in his laboratory a K vitamin identical with the natural one.
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Within this naphthoquinone category, there are two basic types of vitamin K.
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Within this naphthoquinone category, there are two basic types of vitamin K.
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The anti-vitamin K activity was thought to be associated with the hydroxyl group attached to the naphthoquinone ring ofthe compound.
Find Me A Cure 2009
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Within this naphthoquinone category, there are two basic types of vitamin K.
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[alpha] - naphthoquinone, were identical; whilst Meldola acetylated the azophenols, and split the acetyl products by reduction in acid solution, but obtained no satisfactory results.
Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Various
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