quartile quar‧tile [ˈkwɔːtaɪl ǁ ˈkwɔːr-] noun [countable]
STATISTICS one quarter of a set of things or people, arranged in order of value, amount, wealth etc:
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quartile UK US /ˈkwɔːtaɪl/ noun [C]
► GRAPHS & CHARTS in statistics , one of four equal parts that a set of figures is divided into, in order of size, amount, value, etc.: in the top/second, etc. quartile »
The investment fund has appeared regularly in the top quartile of performance tables.
Financial and business terms. 2012.