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beta ray

noun

Definition of beta ray

1 : beta particle
2 : a stream of beta particles

— called also beta radiation

First Known Use of beta ray

1902, in the meaning defined at sense 1

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The first known use of beta ray was in 1902

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More Definitions for beta ray

beta ray

noun

Medical Definition of beta ray

1 : beta particle
2 : a stream of beta particles

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