/ Dictionary / Index M motion work: Meaning and Definition of Find definitions for: mo'tion work" Pronunciation: [key] clockwork by which the hour hand is driven from the shaft of the minute hand. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. motion study motivate Related Content Daily Word Quiz: anecdote Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language