fractionation

English

Etymology

From fraction + -ation or fractionate + -ion.

Noun

fractionation (countable and uncountable, plural fractionations)

  1. (chemistry) A separation process in which a certain quantity of a mixture is divided up into smaller quantities (fractions) in which the composition changes according to a gradient.
    Methane is separated from other hydrocarbons in a gas fractionation plant.
  2. (radiotherapy) The division of a total dose of radiation into fractions.
    Hyponym: hyperfractionation
  3. (cryptography) A preliminary stage of encryption that divides each plaintext symbol into several ciphertext symbols.
  4. A form of hypnosis where the patient is made to enter and leave a trance state many times in quick succession.

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Further reading

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