QUADROPHONIC Meaning of QUADROPHONIC in English quadrophonic BrE AmE ˌkwɒdr ə ˈfɒn ɪk ◂ AmE \ ˌkwɑːdr ə ˈfɑːn ɪk ◂▷ quadrophonic|ally ə l‿i▷ quadrophonic|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012