/ Dictionary / Index R rib cage: Meaning and Definition of Find definitions for: rib' cage" Pronunciation: [key] — Anat. Anat. the enclosure formed by the ribs and their connecting bones. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ribby Ribeirão Prêto Related Content Daily Word Quiz: exemplary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language