fractionation

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English[edit]

Noun[edit]

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. (cryptography) A preliminary stage of encryption that divides each plaintext symbol into several ciphertext symbols.

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