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2 definitions found
 for meitnerium
From WordNet (r) 3.0 (2006) :

  meitnerium
      n 1: a radioactive transuranic element [syn: meitnerium, Mt,
           element 109, atomic number 109]

From The Elements (07Nov00) :

  meitnerium
  Symbol: Mt
  Atomic number: 109
  Atomic weight: (266)
  Half-life of approximately 5ms. The creation of this element
  demonstrated
  that fusion techniques could indeed be used to make new, heavy nuclei.
  Made and identified by physicists of the Heavy Ion Research Laboratory,
  Darmstadt, West Germany in 1982. Named in honor of Lise Meitner the
  Austrian physicist.
  

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