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
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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

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 14 Nov. 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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