Pronunciation: (kwin'til, -tīl), [key]
1. Statistics.a quantile for the special case of five equal proportions.
2. Astrol.a quintile aspect.
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.