ventile


ven·tile

V5060950 (vĕn′tīl′, vĕnt′l)n. Statistics 1. Any of the groups that result when a frequency distribution is divided into twenty groups of equal size.2. Any of the values that separate each of these groups.
[vent-, twenty (probably suggested by Italian venti, twenty, from Old Italian, from Latin vīgintī; see wīkṃtī in Indo-European roots) + -(t)ile + as in quartile, quintile, sextile, etc.]