HYSTERON PROTERON Meaning of HYSTERON PROTERON in English hysteron proteron BrE AmE ˌhɪst ə rɒn ˈprɒt ə rɒn ⇨-rɒmˈ•- AmE \ ˌhɪst ə rɑːn ˈprɑːt̬ ə rɑːn Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012