/ Dictionary / Index C circular triangle: Meaning and Definition of Find definitions for: cir'cular tri'angle Pronunciation: [key] a triangle whose sides are arcs of circles. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. circular saw circular velocity Related Content Daily Word Quiz: wary Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language