FIDUCIAL Meaning of FIDUCIAL in English fiducial BrE AmE fɪ ˈdjuːʃ i‿əl fə-, faɪ-, -ˈdjuːs-, ⇨-ˈdʒuːʃ-, ⇨-ˈdʒuːs- AmE \ fə ˈduːʃ ə l -ˈdjuːʃ- ▷ fiducial|ly i Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012