ARBORETUM Meaning of ARBORETUM in English arboret|um BrE AmE ˌɑːb ə ˈriːt |əm AmE \ ˌɑːrb ə ˈriːt̬ |əm▷ arboret|a ə Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012