/ Dictionary / Index V vacuum distillation: Meaning and Definition of Find definitions for: vac'uum distilla"tion Pronunciation: [key] — Chem. Chem. a process of distillation employing a vacuum that by lowering the pressure on a liquid allows volatilization at a lower temperature than normal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. vacuum concrete vacuum gauge Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language