Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. ,(chemistry) any atom or group which, when added to a chromophore, causes a bathochromic shift in its spectrum

from The Century Dictionary and Cyclopedia

  • n. 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.

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