英和和英

名詞

fractionation (countable and uncountable, plural fractionations)

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.

   Hyponym: fractional distillation

   Methane is separated from other hydrocarbons in a gas fractionation plant.

   After several fractionations, we had a usable product.

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.

派生語

関連する語

• fractionate
• fractionated
• hyperfractionated
• hyperfractionation
• intrafractionation

Further reading

• fractionation on Wikipedia.Wikipedia