/ Dictionary / Index M multiple reentry vehicle: Meaning and Definition of Find definitions for: mul'tiple reen'try ve"hicle Pronunciation: [key] a reentry vehicle equipped with multiple warheads that cannot be directed to separate targets. Abbr.: MRV, M.R.V. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. multiple personality multiple sclerosis Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language