quartile

/หˆkwษ”ห(ษน)taษชl/

IPA: /K W AO1 R T IH0 L/

noun
  1. 1

    Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population.

  2. 2

    Any one of the four groups so divided.

    โ€œThis school is ranked in the first quartile.โ€

Source: https://en.wiktionary.org/wiki/quartile