pyrogallol

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

noun
  1. 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.

Origin of pyrogallol

1
First recorded in 1875–80; pyro- + gall(ic)2 + -ol1
  • Also called pyrogallic acid.

Other words from pyrogallol

  • py·ro·gal·lic [pahy-ruh-gal-ik, -gaw-lik], /ˌpaɪ rəˈgæl ɪk, -ˈgɔ lɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use pyrogallol in a sentence

British Dictionary definitions for pyrogallol

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: C 6 H 3 (OH) 3

Origin of pyrogallol

1
C20: from pyro- + gall (ic)² + -ol 1

Derived forms of pyrogallol

  • pyrogallic, adjective

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