anthraquinone

[an-thruh-kwuh-nohn, -kwee-nohn, -kwin-ohn]

an·thra·qui·none

[an-thruh-kwuh-nohn, -kwee-nohn, -kwin-ohn]
noun Chemistry.
a yellow, water-insoluble, crystalline powder, C14H8O2, usually derived from anthracene or phthalic anhydride: used chiefly in the manufacture of anthraquinone dyes.

Origin:
1880–85; anthra(cene) + quinone
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Anthraquinone is always a great word to know.
So is addition. Does it mean:
a compound capable of changing state or becoming inactive when subjected to heat or radiation
a reaction in which two or more substances combine to form another compound
Collins
World English Dictionary
anthraquinone (ˌænθrəkwɪˈnəʊn, -ˈkwɪnəʊn)
 
n
a yellow crystalline solid used in the manufacture of dyes, esp anthraquinone dyes, which have excellent colour properties. Formula: C6H4(CO)2C6H4
 
[C19: anthra(cene) + quinone]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
anthraquinone   (ān'thrə-kwĭ-nōn', -kwĭn'ōn')  Pronunciation Key 
A yellow crystalline powder that is insoluble in water and used chiefly in the manufacture of dyes. Chemical formula: C14H8O2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

anthraquinone

the most important quinone derivative of anthracene and the parent substance of a large class of dyes and pigments. It is prepared commercially by oxidation of anthracene or condensation of benzene and phthalic anhydride, followed by dehydration of the condensation product

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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