Breadcrumb Home > Dictionary > Index I idle wheel: Meaning and Definition of Find definitions for: i'dle wheel" Pronunciation: [key] — Mach. Mach. a wheel for transmitting power and motion between a driving and a driven part, either by friction or by means of teeth. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. idlesse Idlewild ✖ Related Content Daily Word Quiz: sophism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language