Meaning of fractionator

frac•tion•a•tor

Pronunciation: (frak'shu-nā"tur), [key]
— n.
  1. an apparatus for fractional distillation. Cf. cracker.
  2. any apparatus capable of separating complex liquid substances, as blood, into their component parts.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.