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amidol

American  
[am-i-dawl, -dol] / ˈæm ɪˌdɔl, -ˌdɒl /

noun

Chemistry.

  1. a colorless, crystalline powder, C 6 H 8 N 2 O⋅2HCl, derived from phenol, used chiefly as a photographic developer.

Amidol British  
/ ˈæmɪdɒl /

noun

  1. 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

Etymology

Origin of amidol

First recorded in 1890–95; amid- + -ol 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

We needed not only the essential bulk chemicals, such as amidol, metol, para-amidophenol, and glycine, but also certain rarer substances, such as the photographic sensitisers, which were so essential for the Air Force.

From The Riddle of the Rhine; chemical strategy in peace and war by Lefebure, Victor

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.