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Related to fractional distillation: chromatography
Distillation to separate volatile chemical substances in which the products are collected in a series of separate fractions, each with a higher boiling point than the previous fraction.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
nSometimes shortened to: distillation
1. (Chemistry) the process of separating the constituents of a liquid mixture by heating it and condensing separately the components according to their different boiling points
2. (Chemistry) a distillation in which the vapour is brought into contact with a countercurrent of condensed liquid to increase the purity of the final products
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014