'meitnerium' definitions:

Definition of 'meitnerium'

From: WordNet
noun
A radioactive transuranic element [syn: meitnerium, Mt, element 109, atomic number 109]

Definition of 'meitnerium'

From: Elements
  • 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.