pyrogallol

[ pahy-ruh-gal-awl, -ol, -guh-lawl, -lol ]

/ ˌpaɪ rəˈgæl ɔl, -ɒl, -gəˈlɔl, -ˈlɒl /

noun

a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C6H3(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 of pyrogallol

First recorded in 1875–80; pyro- + gall(ic)² + -ol¹

OTHER WORDS FROM pyrogallol

py·ro·gal·lic

[pahy-ruh-gal-ik, -gaw-lik], /ˌpaɪ rəˈgæl ɪk, -ˈgɔ lɪk/, adjective

Words nearby pyrogallol

pyroconductivity, pyrocrystalline, pyroelectric, pyroelectricity, pyrogallate, pyrogallol, pyrogen, pyrogenic, pyrogenous, pyroglobulin, pyrognostics

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for pyrogallol

The tannins are divided into two general classes, known respectively as the pyrogallol tannins and the catechol tannins.
The Chemistry of Plant Life|Roscoe Wilfred Thatcher
Solutions of pyrogallol tans all give a blue-black colour with a dilute solution of ferric alum.
Animal Proteins|Hugh Garner Bennett
Sumach is the other pyrogallol tan of commercial importance.
Animal Proteins|Hugh Garner Bennett
Thus the "maximum luminescence pressure" of pyrogallol increases with increase of temperature.
The Nature of Animal Light|E. Newton Harvey

Esculin will not luminesce with peroxidase and H2O2, but pyrogallol or gallic acid will.
The Nature of Animal Light|E. Newton Harvey

British Dictionary definitions for pyrogallol

pyrogallol

/ (ˌpaɪrəʊˈɡælɒl) /

noun

a white lustrous crystalline soluble phenol with weakly acidic properties; 1,2,3-trihydroxybenzene: used as a photographic developer and for absorbing oxygen. Formula: C 6 H 3 (OH) 3

Derived forms of pyrogallol

pyrogallic, adjective

Word Origin for pyrogallol

C20: from pyro- + gall (ic)² + -ol 1

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 pyrogallol

pyrogallol

[ pī′rō-găl′ôl′, -ōl′, -gô′lôl′, -lōl′ ]

n.

A white, toxic crystalline phenol used as a photographic developer and to treat certain skin diseases.pyrogallic acid

单词	pyrogallol
释义	pyrogallol [ pahy-ruh-gal-awl, -ol, -guh-lawl, -lol ] / ˌpaɪ rəˈgæl ɔl, -ɒl, -gəˈlɔl, -ˈlɒl / noun a white, crystalline, water-soluble, poisonous, solid, phenolic compound, C6H3(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 of pyrogallol First recorded in 1875–80; pyro- + gall(ic)² + -ol¹ OTHER WORDS FROM pyrogallol py·ro·gal·lic [pahy-ruh-gal-ik, -gaw-lik], /ˌpaɪ rəˈgæl ɪk, -ˈgɔ lɪk/, adjective Words nearby pyrogallol pyroconductivity, pyrocrystalline, pyroelectric, pyroelectricity, pyrogallate, pyrogallol, pyrogen, pyrogenic, pyrogenous, pyroglobulin, pyrognostics Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for pyrogallol The tannins are divided into two general classes, known respectively as the pyrogallol tannins and the catechol tannins. The Chemistry of Plant Life\|Roscoe Wilfred Thatcher Solutions of pyrogallol tans all give a blue-black colour with a dilute solution of ferric alum. Animal Proteins\|Hugh Garner Bennett Sumach is the other pyrogallol tan of commercial importance. Animal Proteins\|Hugh Garner Bennett Thus the "maximum luminescence pressure" of pyrogallol increases with increase of temperature. The Nature of Animal Light\|E. Newton Harvey Esculin will not luminesce with peroxidase and H2O2, but pyrogallol or gallic acid will. The Nature of Animal Light\|E. Newton Harvey British Dictionary definitions for pyrogallol pyrogallol / (ˌpaɪrəʊˈɡælɒl) / noun a white lustrous crystalline soluble phenol with weakly acidic properties; 1,2,3-trihydroxybenzene: used as a photographic developer and for absorbing oxygen. Formula: C 6 H 3 (OH) 3 Derived forms of pyrogallol pyrogallic, adjective Word Origin for pyrogallol C20: from pyro- + gall (ic)² + -ol 1 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 pyrogallol pyrogallol [ pī′rō-găl′ôl′, -ōl′, -gô′lôl′, -lōl′ ] n. A white, toxic crystalline phenol used as a photographic developer and to treat certain skin diseases.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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