/ Dictionary / Index V vacuum pump: Meaning and Definition of Find definitions for: vac'uum pump" Pronunciation: [key] a pump or device by which a partial vacuum can be produced. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. vacuum pan vacuum tube 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