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vacuum distillation

noun, Chemistry.
a process of distillation employing a vacuum that by lowering the pressure on a liquid allows volatilization at a lower temperature than normal.
Origin of vacuum distillation
First recorded in 1895-1900 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for vacuum distillation
Historical Examples
  • In vacuum distillation, the operation is begun without the use of vacuum.

    Soap-Making Manual E. G. Thomssen
British Dictionary definitions for vacuum distillation

vacuum distillation

distillation in which the liquid distilled is enclosed at a low pressure in order to reduce its boiling point
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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