/ Dictionary / Index C circular velocity: Meaning and Definition of Find definitions for: cir'cular veloc'ity Pronunciation: [key] the velocity at which a body must move in order to maintain an orbit at the outer edge of the earth's atmosphere. Cf. orbital velocity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. circular triangle circulate 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