/ Dictionary / Index R round angle: Meaning and Definition of Find definitions for: round' an'gle Pronunciation: [key] perigon. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. roundabout chair round arch Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language