[ ˌkrəʊmə'tɒgrəfi ]
■ noun Chemistry a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.
Derivatives
chromatogram noun
chromatograph noun
chromatographic adjective
Origin
1930s: from chromato- + -graphy (early separations being displayed as a number of coloured bands or spots).