spinthariscope
noun
spin·thar·i·scope
spin-ˈther-ə-ˌskōp 
-ˈtha-rə-
: an instrument for visual detection of alpha particles that consists of a fluorescent screen and a magnifying lens system
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“Spinthariscope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spinthariscope. Accessed 21 Dec. 2024.
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