from The Century Dictionary.
- noun In chem., noting those groups contained in dyes which enable them to combine with the fiber of the cloth or with a mordant. The most important of these are the hydroxyl-, amino-, sulpho-, and carboxyl-groups.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun obsolete ,(
chemistry) any atomor groupwhich, when added to a chromophore, causes a bathochromicshift in its spectrum
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