Ptolemy using a quadrant (4)



  • One of the four sections made by dividing an area with two perpendicular lines.
  • One of the four regions of the Cartesian plane bounded by the x-axis and y-axis.
  • One fourth of a circle or disc; a sector with an angle of 90°.
  • A measuring device with a graduated arc of 90° used in locating an altitude.
  • One of the four categories of team wins and losses, as categorized by strength of schedule.


  • Borrowed from Latin quadrantem, accusative singular of quadrāns.

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