Moscovium
noun ·Rare ·Advanced level
Definitions
- 1 The chemical element with atomic number 115. uncountable
"In January 2016 the International Union of Pure and Applied Chemistry (IUPAC) announced the discovery of four new elements, so completing the seventh row of the periodic table. They have since been named as nihonium, Nh, muscovium^([sic]), Mc, tennessine, Ts, and organesson^([sic]), Og. The procedures for naming new elements are clearly laid out by IUPAC."
Example
More examples"Given the atomic numbers 113, 115, 117 and 118, the four new elements have been named Nihonium (Nh), Moscovium (Mc), Tennessine (Ts) and Oganesson (Og), respectively."
Etymology
From Moscow + -ium, named after Moscow Oblast. Promulgated as the proposed name for ununpentium in June 2016 by the IUPAC based on recommendations of the Joint Institute for Nuclear Research, Oak Ridge National Laboratory, Vanderbilt University and Lawrence Livermore National Laboratory to honor the region where the element was discovered.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.