BETA Meaning of BETA in English beta, Beta BrE AmE ˈbiːt ə AmE \ ˈbeɪt̬ ə (*)▷ beta|s z▶ ˈ beta ˌ particle BrE AmE▶ ˈ beta ˌ rhythm BrE AmE Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012