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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
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 21 Dec. 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
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!