SIALAGOGUE Meaning of SIALAGOGUE in English sialagogue, sialogogue BrE AmE saɪ ˈæl ə ɡɒɡ ˈsa ɪ ‿əl- AmE \ -ɡɑːɡ▷ sialagogue|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012