INSULATOR Meaning of INSULATOR in English insulator BrE AmE ˈɪn t s ju leɪt ə ˈ•jə-; § ˈɪn t ʃ u- AmE -ə leɪt̬ ə r▷ insulator|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012