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auxochrome
[ awk-suh-krohm ]
/ ˈɔk səˌkroʊm /
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noun Chemistry.
any radical or group of atoms that intensifies the color of a substance.
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OTHER WORDS FROM auxochrome
aux·o·chrom·ic, adjectiveWords nearby auxochrome
auxiliary verb, auxilytic, auxin, Auxo, auxocardia, auxochrome, auxocyte, auxospore, auxotonic, auxotroph, auxotrophic
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use auxochrome in a sentence
The selenium atom in a cyclic compound also acts like an auxochrome.
This brings selenophene more akin to pyrrole than thiophene, but the group -NH- in the molecule of pyrrole is an auxochrome.
In other words, an auxochrome in addition to the chromophore group transforms a colorless chromogen into a colored one.
While phenyldisulphide is colorless, when an auxochrome group is added, such as NH2, the compound is colored.
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
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