auxochrome

[ awk-suh-krohm ]

/ ˈɔk səˌkroʊm /

noun Chemistry.

any radical or group of atoms that intensifies the color of a substance.

Nearby words

auxilytic, auxin, auxo, auxo-, auxocardia, auxochrome, auxocyte, auxospore, auxotonic, auxotroph, auxotrophic

Origin of auxochrome

First recorded in 1890–95; auxo- + chrome

Related formsaux·o·chrom·ic, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for auxochrome

This brings selenophene more akin to pyrrole than thiophene, but the group -NH- in the molecule of pyrrole is an auxochrome.
Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives|Y-Gwan Chen
The selenium atom in a cyclic compound also acts like an auxochrome.
Synthesis of 2-methyl-4-selenoquinazolone, 2-phenylbenzoselenazole, and its derivatives|Y-Gwan Chen

British Dictionary definitions for auxochrome

auxochrome

/ (ˈɔːksəˌkrəʊm) /

noun

a group of atoms that can be attached to a chromogen to convert it into a dye

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