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colure

Syllabification: co·lure
Pronunciation: /kəˈlo͝or
 
/

Definition of colure in English:

noun

Astronomy
Either of two great circles intersecting at right angles at the celestial poles and passing through the ecliptic at either the equinoxes or the solstices.
Example sentences
  • Two great circles, the solstitial colure and the equinoctial colure, intersect at the celestial poles.
  • The four crossbars, or rungs of the ladder, are the four colures, which come together at the pole.
  • The relative precision of the constellations, the path of the Milky Way, and information on the parallels and colures is therefore even more remarkable.

Origin

late Middle English: from late Latin coluri (plural), from Greek kolourai (grammai) 'truncated (lines)', from kolouros 'truncated', so named because the lower part is permanently cut off from view.

Definition of colure in:

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