/ Dictionary / Index C chain gear: Meaning and Definition of Find definitions for: chain' gear" Pronunciation: [key] a gear assembly in which motion is transmitted by means of a chain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chain gang chain letter 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