catechol

[ kat-i-kawl, -kol ]
/ ˈkæt ɪˌkɔl, -ˌkɒl /
|

noun

a colorless, crystalline, dihydroxyl derivative of benzene, C6H6O2, the ortho isomer, used chiefly in photography, for dyeing, and as a reagent; pyrocatechol.

Origin of catechol

First recorded in 1875–80; catech(u) + -ol1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for catechol

British Dictionary definitions for catechol

catechol

/ (ˈkætɪˌtʃɒl, -ˌkɒl) /

noun

a colourless crystalline phenol found in resins and lignins; 1,2-dihydroxybenzene. It is used as a photographic developer. Formula: C 6 H 4 (OH) 2Also called: pyrocatechol

Word Origin for catechol

C20: from catechu + -ol 1
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

Medicine definitions for catechol

catechol

[ kătĭ-kôl′, -kōl′ ]

n.

pyrocatechol
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for catechol

catechol

[ kătĭ-kôl′, -kōl′ ]

A biologically important organic phenol occurring naturally in lignins and resins. It has two hydroxyl groups attached to a benzene ring. Catechol is very caustic and is used in dyeing and as a photographic developer and an antiseptic. Chemical formula: C6H6O2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.