helium-3

noun

: the isotope of helium having the mass number three

Word History

Etymology

helium + 3, mass number of the isotope

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Dictionary Entries Near helium-3

helium

helium-3

helium-4

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“Helium-3.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/helium-3. Accessed 18 Dec. 2024.

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