/ Dictionary / Index M motor vehicle: Meaning and Definition of Find definitions for: mo'tor ve"hicle Pronunciation: [key] an automobile, truck, bus, or similar motor-driven conveyance. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. motor van motor voter law Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language