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pyrogallol

[pahy-ruh-gal-awl, -ol, -guh-lawl, -lol] /ˌpaɪ rəˈgæl ɔl, -ɒl, -gəˈlɔl, -ˈlɒl/
noun
1.
a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C 6 H 3 (OH) 3 , obtained by heating gallic acid and water: used chiefly as a developer in photography, as a mordant for wool, in dyeing, and in medicine in the treatment of certain skin conditions.
Also called pyrogallic acid.
Origin
1875-1880
1875-80; pyro- + gall(ic)2 + -ol1
Related forms
pyrogallic
[pahy-ruh-gal-ik, -gaw-lik] /ˌpaɪ rəˈgæl ɪk, -ˈgɔ lɪk/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pyrogallic

pyrogallol

/ˌpaɪrəʊˈɡælɒl/
noun
1.
a white lustrous crystalline soluble phenol with weakly acidic properties; 1,2,3-trihydroxybenzene: used as a photographic developer and for absorbing oxygen. Formula: C6H3(OH)3
Derived Forms
pyrogallic, adjective
Word Origin
C20: from pyro- + gall(ic)² +-ol1
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
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pyrogallic in Medicine

pyrogallol py·ro·gal·lol (pī'rō-gāl'ôl', -ōl', -gô'lôl', -lōl')
n.
A white, toxic crystalline phenol used as a photographic developer and to treat certain skin diseases. Also called pyrogallic acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for pyrogallic

pyrogallol

an organic compound belonging to the phenol family, used as a photographic film developer and in the preparation of other chemicals

Learn more about pyrogallol with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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