1. the process of separating a mixture by passing it through a material through which some parts of the mixture travel further than others
   Word Origin1930s: from German Chromatographie (from chromato-, from Greek khrōma, khrōmat- ‘colour’ and -graphy, from or suggested by Greek -graphia ‘writing’), early separations being displayed as a number of coloured bands or spots.

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[TahlilGaran] English Dictionary ▲