PLANETARIUM Meaning of PLANETARIUM in English planetari|um BrE AmE ˌplæn ə ˈteər i‿|əm ˌ•ɪ- AmE \ -ˈter- -ˈtær- ▷ planetari|a ə▷ planetari|ums əmz Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012