/ Dictionary / Index M minivacuum: Meaning and Definition of Find definitions for: min•i•vac•u•um Pronunciation: (min'ē-vak"y-um, -ym), [key] — n. a small, hand-held vacuum cleaner, as for vacuuming upholstered furniture or car seats, or other relatively small areas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Mini-Vac minivan Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language