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beta▼adjective[UK: ˈbiː.tə] [US: ˈbeɪ.tə]
beta [betas]▼(letter of the Greek alphabet)noun[UK: ˈbiː.tə] [US: ˈbeɪ.tə]
betatron [betatrons]▼(a form of cyclotron used to accelerate electrons to high speed)noun[UK: ˈbiː.tə.trɒn] [US: ˈbeɪ.tə.trɑːn]
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