quartile

quartile
/kwawr"tuyl, -til/, n.
1. Statistics. (in a frequency distribution) one of the values of a variable that divides the distribution of the variable into four groups having equal frequencies. Cf. first quartile, median, third quartile.
2. Astrol. a quartile aspect.
adj.
3. Astrol. of or pertaining to the aspect of two heavenly bodies when their longitudes differ by 90°.
[1500-10; < ML quartilis, equiv. to L quart(us) FOURTH + -ilis -ILE]

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Universalium. 2010.

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