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PYROGALLOL
pyrogallol, pyrogallic acid
(noun) a toxic white lustrous crystalline phenol used to treat certain skin diseases and as a photographic developer
Source: WordNet® 3.1
Etymology
Noun
pyrogallol (uncountable)
(organic compound) A poisonous trihydroxy phenol, 1,2,3-trihydroxybenzene, C6H3(OH)3, used is a photographic developer.
Synonyms
• pyrogallic acid
Source: Wiktionary
Pyr`o*gal"lol, n. Etym: [Pyrogallic + -ol.] (Chem.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition
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