Definition of: sextile

(seks′til) adjective
Indicated or measured by a distance of 60 degrees.
—noun
1. Astron. The aspect of two planets at a distance of 60 degrees from each other.
2. Stat. One of the divisions of a frequency distribution containing exactly one sixth of the total number of cases or observations included. [<L sextilis (mensis) the sixth (month, i.e., August <sextus sixth]