DECIDUOUS Meaning of DECIDUOUS in English deciduous BrE AmE di ˈsɪd ju‿əs də- AmE \ dɪ ˈsɪdʒ u‿əs▷ deciduous|ly li▷ deciduous|ness nəs nɪs Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012