/ Dictionary / Index M mill wheel: Meaning and Definition of Find definitions for: mill' wheel" Pronunciation: [key] a wheel, esp. a waterwheel, for driving a mill. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: millwheel (Thesaurus) Millville millwork Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language