INTERQUARTILE Meaning of INTERQUARTILE in English interquartile BrE AmE ˌɪnt ə ˈkwɔːt aɪ ə l ◂ AmE \ ˌɪn t̬ ə r ˈkwɔːrt- -ˈkwɔːrt̬ ə l ◂ ▷ interquartile|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012