/ Dictionary / Index C circle of convergence: Meaning and Definition of Find definitions for: cir'cle of conver'gence Pronunciation: [key] a circle associated with a given power series such that the series converges for all values of the variable inside the circle and diverges for all values outside it. Cf. interval of convergence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. circle of confusion circle of curvature Related Content Daily Word Quiz: reluctant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language