Fiancé or fiancée? What's the difference?


[kwi-nohn, kwin-ohn] /kwɪˈnoʊn, ˈkwɪn oʊn/
noun, Chemistry
a yellow, crystalline, cyclic unsaturated diketone, C 6 H 4 O 2 , 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 quinone
1850-55; quin(ic acid) + -one Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
British Dictionary definitions for quinone


/kwɪˈnəʊn; ˈkwɪnəʊn/
another 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
Cite This Source
quinone in Medicine

quinone qui·none (kwĭ-nōn', kwĭn'ōn')
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.
Cite This Source
quinone in Science
  (kwĭ-nōn', kwĭn'ōn')   
  1. 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.

  2. 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 © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for quinone

Most English speakers likely know this word

Word Value for quinone

Scrabble Words With Friends

Nearby words for quinone