单词 | quinone |
释义 | quinone[ kwi-nohn, kwin-ohn ] / kwɪˈnoʊn, ˈkwɪn oʊn / noun Chemistry.a yellow, crystalline, cyclic unsaturated diketone, C6H4O2, formed by oxidizing aniline or hydroquinone: used chiefly in photography and in tanning leather. any of a class of compounds of this type. Also chinone. Origin of quinoneFirst recorded in 1850–55; quin(ic acid) + -one Words nearby quinonequinoid, quinoidine, quinol, quinoline, quinolone, quinone, quinone diimine, quinonimine, quinonoid, quinoxaline, quinq. Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for quinoneBritish Dictionary definitions for quinonequinone / (kwɪˈnəʊn, ˈkwɪnəʊn) / nounanother name for benzoquinone Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for quinonequinone [ kwĭ-nōn′, kwĭn′ōn′ ] n.Any of a class of aromatic compounds found widely in plants, especially the crystalline form used in making dyes. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for quinonequinone [ kwĭ-nōn′, kwĭn′ōn′ ] Any of a class of organic compounds that occur naturally as pigments in bacteria, plants, and certain fungi. Quinones have two carbonyl groups (CO) in an unsaturated six-member carbon ring. A yellow crystalline compound belonging to this class, used in photography, to make dyes and to tan hides. Chemical formula: C6H4O2. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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