Dictionary
quar•tile
Pronunciation: (kwôr'tīl, -til), [key]—
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.
Astrol.of or pertaining to the aspect of two heavenly bodies when their longitudes differ by 90°.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.