Dictionary.com
definitions
  • synonyms

quartile

[kwawr-tahyl, -til]
noun
  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.Compare first quartile, median, third quartile.
  2. Astrology. a quartile aspect.
Show More
adjective
  1. Astrology. of or relating to the aspect of two heavenly bodies when their longitudes differ by 90°.
Show More

Origin of quartile

1500–10; < Medieval Latin quartīlis, equivalent to Latin quart(us) fourth + -īlis -ile
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for quartile

Contemporary Examples

Historical Examples


British Dictionary definitions for quartile

quartile

noun
  1. statistics one of three actual or notional values of a variable dividing its distribution into four groups with equal frequencies
Show More
adjective
  1. statistics denoting or relating to a quartile
  2. astrology denoting an aspect of two heavenly bodies when their longitudes differ by 90°
  3. a quarter part of a distribution
Show More

Word Origin

C16: from Medieval Latin quartīlis, from Latin quartus fourth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for quartile

n.

c.1500, originally in astronomy; see quartile (adj.). In statistics, from 1879.

Show More

adj.

mid-15c., "90 degrees apart" (of astronomical measurements), from Middle French quartil, from Medieval Latin quartilus "of a quartile," from Latin quartus "fourth" (see quart).

Show More
Online Etymology Dictionary, © 2010 Douglas Harper