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vacuum distillation

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noun Chemistry.
  1. 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for vacuum distillation

vacuum distillation

noun
  1. 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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