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A Writer's Dictionary:

quartile Definition


Dictionary Home » Words Starting with Q » quarantine ... queen » quartile


quartile
adj
    1. astron.
      Said of the aspect of two heavenly bodies: 90° apart.
noun
    1. astrol.
      A quartile aspect between two heavenly bodies.
    2. statistics.
      In a frequency distribution: a value such that one quarter, one half or three quarters of the numbers considered are contained within it, these being called, respectively first quartile, second quartile and third quartile.
Etymology: 16c: from Latin quartilis, from quartus fourth.



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