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  1  definition  found 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
  Colure  \Co*lure"\,  n.;  pl  {Colures}.  [F.  colure,  L.  coluri, 
  pl.,  fr  Gr  ko`loyros  dock-tailed,  a"i  ko`loyroi  (sc. 
  grammai`  lines)  the  colures;  fr  ko`los  docked,  stunted  + 
  o'yra`  tail.  So  named  because  a  part  is  always  beneath  the 
  horizon.]  (Astron.  &  Geog.) 
  One  of  two  great  circles  intersecting  at  right  angles  in  the 
  poles  of  the  equator.  One  of  them  passes  through  the 
  equinoctial  points,  and  hence  is  denominated  the  equinoctial 
  colure;  the  other  intersects  the  equator  at  the  distance  of 
  90[deg]  from  the  former,  and  is  called  the  solstitial  colure. 
  Thrice  the  equinoctial  line  He  circled;  four  times 
  crossed  the  car  of  night  From  pole  to  pole,  traversing 
  each  colure.  --Milton.