/ Dictionary / Index C colure: Meaning and Definition of Find definitions for: co•lure Pronunciation: (ku-loor', kō-, kō'loor), [key] — n. Astron. either of two great circles of the celestial sphere intersecting each other at the poles, one passing through both equinoxes and the other through both solstices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. column vector coly Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language