chromophore

  1. Noun.  (chemistry) that part of the molecule of a dye responsible for its colour.
  2. Noun.  (chemistry) (''more generally'') the group of atoms in a molecule in which the electronic transition responsible for a given spectral band is located.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.