DEFOLIATION Meaning of DEFOLIATION in English defoliation BrE AmE di ˌfəʊl i ˈeɪʃ ə n də-, ˌdiː ˌfəʊl- AmE \ -ˌfoʊl-▷ defoliation|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012