Definition of chromatography noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌkrəʊməˈtɒɡrəfi//
; NAmE NAmE//ˌkroʊməˈtɑːɡrəfi//
[uncountable] (chemistry)
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the separation of 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.
See the Oxford Advanced American Dictionary entry: chromatography