quadrant

Noun
  1. A quarter of the circumference of a circle (synset 108645380)
    is a type of: line - a spatial location defined by a real or imaginary unidimensional extent
    same as: quarter-circle
  2. Any of the four areas into which a plane is divided by two orthogonal coordinate axes (synset 108645240)
    is a type of: area, country - a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
  3. The area enclosed by two perpendicular radii of a circle (synset 108645129)
    is a type of: area, country - a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography)
  4. A measuring instrument for measuring altitude of heavenly bodies (synset 104037322)
    is a type of: measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something

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