Decile n. : An aspect or position of two planets, when they are distant from each other a tenth part of the zodiac, or 36¡.

Example:
How do you work out the Decile in a cumulative frequency graph?

Taxonomy
decile, cuts, free encyclopedia, percentile, search, the nine, values, population, one-tenth, degree circle, astrologers, disambiguation pages, Personal tools, Interaction, Toolbox, Languages, non-profit organization, quartile.

Defination from the web:
decile is any of the nine values that divide the sorted data into ten equal parts, so that each part represents 1/10 ... In astrology, a decile is an aspect of 36 degrees. It is one-tenth of the 360 degree circle that forms our zodiac. ...