Breadcrumb Home > Dictionary > Index D driving barrel: Meaning and Definition of Find definitions for: driv'ing bar"rel Pronunciation: [key] (in a weight-driven clock) the drum turned by the descent of the weight, which drives the clock mechanism. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. driving driving dog ✖ Related Content Daily Word Quiz: restive Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language