beta ray

noun

1
2
: a stream of beta particles

called also beta radiation

Examples of beta ray in a Sentence

Recent Examples on the Web Tarachine mainly measures cesium-134 and cesium-137, which produce gamma rays, whereas strontium-90 and tritium emit beta rays. Takehiko Kambayashi, The Christian Science Monitor, 10 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'beta ray.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1902, in the meaning defined at sense 1

Time Traveler
The first known use of beta ray was in 1902

Dictionary Entries Near beta ray

Cite this Entry

“Beta ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/beta%20ray. Accessed 29 Mar. 2024.

Kids Definition

beta ray

noun
1
2
: a stream of beta particles

Medical Definition

beta ray

noun
1
2
: a stream of beta particles
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