POLYSYLLABLE Meaning of POLYSYLLABLE in English polysyllable BrE AmE ˈpɒl i ˌsɪl əb ə l ˌ••ˈ••• AmE \ ˈpɑːl-▷ polysyllable|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012