PROTHALAMION Meaning of PROTHALAMION in English prothalami|on BrE AmE ˌprəʊ θə ˈleɪm i‿|ən AmE \ ˌproʊ- -i |ɑːn ▷ prothalami|a ə▷ prothalami|um əm Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012