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Noun: ununpentium
Usage: archaic (=moscovium)
  1. A radioactive transuranic element, with atomic number 115
    "Ununpentium was first synthesized in 2003 by Russian and American scientists";
    - Uup, element 115, atomic number 115, moscovium, Mc

Type of: chemical element, element

Encyclopedia: Ununpentium