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Definition of: colure
(kə·ly
r′, kō′lyr) noun Astron.
One of the two great circles of the celestial sphere at right angles to each other, intersecting at the poles and passing through the equinoxes and the solstices respectively. [<L colurus <Gk. kolouros <kolos docked + oura tail; because their lower parts are cut off by the horizon]
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