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livermorium

[ liv-er-mawr-ee-uhm, -mohr- ]
/ ˌlɪv ərˈmɔr i əm, -ˈmoʊr- /
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noun Chemistry, Physics.
a superheavy, synthetic, radioactive element with a very short half-life. Symbol: Lv; atomic number: 116.
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Formerly un·un·hex·i·um [uhn-uhn-hek-see-uhm], /ˌʌn ənˈhɛk si əm/, el·e·ment 116 .

Origin of livermorium

First recorded in 2010–15; named after Lawrence Livermore National Laboratory, which participated in its creation.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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