quartile /ˈkwɔː(ɹ)taɪl/noun 2verb 1forms 3 noun2 •Any of the three points that divide an ordered distribution into four parts, each containing a quarter of the population. •Any one of the four groups so divided.This school is ranked in the first quartile. verb1 •To divide into quartiles. formsquartiled · quartiling · quartiles
