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beta ray

noun

, Physics.
  1. a stream of beta particles.


beta ray

noun

  1. a stream of beta particles
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


beta ray

  1. 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.

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beta radiationbeta receptor