alpha decay

noun

: the radioactive decay of an atomic nucleus by emission of an alpha particle

Word History

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of alpha decay was in 1931

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Dictionary Entries Near alpha decay

Cite this Entry

“Alpha decay.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha%20decay. Accessed 21 May. 2024.

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