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n. Symbol Mc
An artificially produced radioactive element with atomic number 115 whose most stable isotope has a mass number of 289 and a half-life of 220 milliseconds.

[New Latin Moscovia, Moscow, Muscovy (probably from Old Russian Moskovĭ, accusative of *Mosky, Moscow, source of Modern Russian Moskva, Moscow) + -ium (so called because it was first synthesized at the Joint Institute for Nuclear Research in Dubna, in the Moscow region).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
"I have already looked into young Maya's theory, and I believe moscovium and germanium together might be the strongest mix you can get.
In 2016, four new elements were added to it: nihonium, moscovium, tennessine, and oganesson.
Linked with Moscovium - (Discovered in a laboratory in Moscow); Copernicium - (Nicolaus Copernicus, Scientist); Roentgenium - (Wilhelm Rontgen); Meitnerium -(Lise Meitner); Lawrencium - (Ernest Lawrence); Nobelium - (Alfred Nobel), and Rutherfordium - Ernest Rutherford, New Zealand).