2016, in the meaning defined above
New Latin Moscovia "Moscow" (or from the base of Russian moskovskij "of Moscow, Muscovite") + -ium; so named because the Joint Institute for Nuclear Research in Dubna, Russia, where the element was produced, lies within Moscow Oblast
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Cite this Entry
“Moscovium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moscovium. Accessed 3 Oct. 2022.
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