amidol

[am-i-dawl, -dol]

noun Chemistry.

a colorless, crystalline powder, C6H8N2O⋅2HCl, derived from phenol, used chiefly as a photographic developer.

Origin of amidol

First recorded in 1890–95; amid- + -ol¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for amidol

Historical Examples of amidol

With amidol a pure delicate black is easily obtainable, and it is moreover a very simple developer to use.
The Barnet Book of Photography
Various

British Dictionary definitions for amidol

Amidol

noun

trademark a grey to colourless soluble crystalline solid that is used as a photographic developer; 2,4-diaminophenol dihydrochloride. Formula: C 6 H 3 (NH 2) 2 (OH).2HCl

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