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Verb: fractionate  'frak-shu,neyt
  1. (chemistry) separate into constituents or fractions containing concentrated constituents
    "The lab technician fractionated the blood sample for analysis"
     
  2. (chemistry) obtain by a fractional process
    "They fractionated the crude oil into various petroleum products"

Derived forms: fractionating, fractionates, fractionated

Type of: separate