Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A white, toxic crystalline phenol, C6H3(OH)3, used as a photographic developer and to treat certain skin diseases.
from The Century Dictionary.
- noun A white crystalline compound, C6H3(OH)3, obtained by the distillation of gallic acid, whence the name: also made synthetically. It is used as a photographic developer. The alkaline solution is sometimes used in gas analysis to absorb oxygen. It has a bitter taste, is poisonous, and melts at 132.5–133.5° C. Also called
pyrogallic acid .
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A phenol metameric with phloroglucin, obtained by the distillation of gallic acid as a poisonous white crystalline substance having acid properties, and hence called also
pyrogallic acid . It is a strong reducer, and is used as a developer in photography and in the production of certain dyes.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry A
poisonous trihydroxy phenol , 1,2,3-trihydroxybenzene, C6H3(OH)3, used is aphotographic developer .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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He mentioned especially a substance called pyrogallol, which cost $2.00 a pound, and of course it could not be applied on a large scale; but it was as good a fertilizer as anything, although it contains nothing but carbon, oxygen, and hydrogen, which, as you explained to me when you were here before, the plants secure in abundance from air and water.
The Story of the Soil; from the Basis of Absolute Science and Real Life, 1892
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While it is often assumed that toxicity is due to tannic acid, garlic acid and pyrogallol (Basden and Dalvi, 1987) or to other, unspecified, low molecular weight compounds produced by the breakdown of hydrolyzable tannins in the gut
Chapter 5 1994
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PIGEON, R.F. and CAMP, B.J. (1962) The toxicity of garlic acid, pyrogallol, tannic acid and Quercus havardi in the rabbit.
Chapter 5 1994
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Phytochemical studies made possible the isolation and identification of pygallic acid, commonly known as pyrogallol.
Chapter 12 1991
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There are plants which have activities already known but of which we did not know the presence in the plant under study, for example pyrogallol.
Chapter 12 1991
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Alcohol alone, pyrogallol alone, and pargyline alone did not produce detectable TIQ.
Alcohol and The Addictive Brain Kenneth Blum 1991
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Alcohol alone, pyrogallol alone, and pargyline alone did not produce detectable TIQ.
Alcohol and The Addictive Brain Kenneth Blum 1991
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To conclude, we established that the chemotherapeutic activity of Rubus rigidus used by Rwandese traditional practitioners is mainly due to the presence of pyrogallol.
Chapter 12 1991
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However, bibliographical research has shown that pyrogallol has a hepatoprotective activity which is observable when the same amount of doses are used as those showing antibacterial effect.
Chapter 12 1991
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From the medico - pharmaceutical point of view, pyrogallol already has several uses especially in external usage.
Chapter 12 1991
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