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See more synonyms for fractionate on Thesaurus.com
verb (used with object), frac·tion·at·ed, frac·tion·at·ing.
  1. to separate or divide into component parts, fragments, divisions, etc.
  2. fractional distillation,
  3. to obtain by such a process.
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Origin of fractionate

First recorded in 1865–70; fraction + -ate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for fractionate


  1. to separate or cause to separate into constituents or into fractions containing concentrated constituents
  2. (tr) chem to obtain (a constituent of a mixture) by a fractional process
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Derived Formsfractionation, nounfractionator, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012