/ Dictionary / Index C circle of declination: Meaning and Definition of Find definitions for: cir'cle of declina'tion Pronunciation: [key] — Astron. Astron. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. circle of curvature circle of least confusion 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