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beta ray
noun
, Physics.
- a stream of beta particles.
beta ray
noun
- a stream of beta particles
beta ray
- A stream of beta particles.
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Word History and Origins
Origin of beta ray1
First recorded in 1900–05
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Example Sentences
The beta ray of radium will penetrate solid iron a foot thick, a feat that would give a spirit pause.
From Project Gutenberg
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