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Definition of Percentile
1. 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.
Definition of Percentile
1. Noun. (statistics) Any of the ninety-nine points that divide an ordered distribution into one hundred parts, each containing one per cent of the population. ¹
2. Noun. (statistics) Any one of the hundred groups so divided. ¹
¹ Source: wiktionary.com
Definition of Percentile
1. [n -S]
Medical Definition of Percentile
1. The percentage of individuals in a group who have achieved a certain quantity (such as height, weight, and head circumference) or developmental milestone (such as walking well the 50th percentile for which is12 months of age). (12 Dec 1998)