Dictionary
quin•tile
Pronunciation: (kwin'til, -tīl), [key]—
n.
1. Statistics.a quantile for the special case of five equal proportions.
2. Astrol.a quintile aspect.
—
adj.
Astrol.of or pertaining to the aspect of two heavenly bodies that are one fifth of the zodiac, or 72°, apart.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.