quadrant

  1. Noun.  One of the four sections made by dividing an area with two perpendicular lines.
  2. Noun.  (mathematics) The four regions of the Cartesian plane bounded by the x-axis and y-axis.
  3. Noun.  (geometry) One fourth of a circle or disc; a sector with an angle of 90°.
  4. Noun.  (nautical) A measuring device with a graduated arc of 90° used in locating an altitude.

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This entry was last updated on RefTopia from its source on 3/20/2012.