QUADRATIC Meaning of QUADRATIC in English quadratic BrE AmE kwɒ ˈdræt ɪk AmE \ kwɑː ˈdræt̬ ɪk▷ quadratic|s s▶ qua ˌ dratic e ˈ quation BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012