noun.
One of a set of points on a scale arrived at by dividing a group into parts in order of magnitude. For example, a score equal to or greater than 97 percent of those attained on an examination is said to be in the 97th percentile.
The Century Dictionary and Cyclopedia
In percentage: as, percentile measurement.
noun.
See the first quotation.
noun.
In mathematics, a point upon a curve of errors which corresponds to a certain percentage of the total number of observations under discussion.
noun.
Any of the ninety-nine points that divide an ordereddistribution into one hundred parts, each containing one per cent of the population.
noun.
Any one of the hundred groups so divided.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
(statistics) any of the 99 numbered points that divide an ordered set of scores into 100 parts each of which contains one-hundredth of the total
Word Usage
"America leads the world in percentile behind bars, thanks to ongoing persecution of hippies, radicals, and non-whites under prosecution of the war on drugs."