fractionation

/F R AE1 K SH AH0 N EY1 SH AH0 N/
noun
  1. 1

    (chemistry, uncountable, countable) 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; an instance of this process.

  2. 2

    (radiotherapy) The division of a total dose of radiation into fractions.

  3. 3

    A form of hypnosis where the patient is made to enter and leave a trance state many times in quick succession.

  4. 4

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

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