STRONTIUM Meaning of STRONTIUM in English strontium BrE AmE ˈstrɒnt i‿əm ˈstrɒn t ʃ- AmE \ ˈstrɑːn t ʃ i‿əm ˈstrɑːn t̬ - ▶ ˌ strontium ˈ 90 BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012