actinon

noun

ac·​ti·​non ˈak-tə-ˌnän How to pronounce actinon (audio)
: a gaseous radioactive isotope of radon that has a half-life of about four seconds

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“Actinon.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/actinon. Accessed 18 Apr. 2024.

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