moscovium
noun
mos·co·vi·um mä-ˈskō-vē-əm 
: a short-lived, artificially produced radioactive element that has 115 protons —symbol Mc see Chemical Elements Table
Word History
Etymology
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
First Known Use
2016, in the meaning defined above