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ALL meanings of fermium

fer·mi·um
F f
  • noun fermium The chemical element of atomic number 100, a radioactive metal of the actinide series. Fermium does not occur naturally and was discovered in 1953 in the debris of the first hydrogen bomb explosion. 1
  • noun fermium a transuranic element. Symbol: Fm; atomic number: 100. 1
  • noun fermium A transuranic chemical element (symbol Fm) with an atomic number of 100. 0
  • noun fermium a transuranic element artificially produced by neutron bombardment of plutonium. Symbol: Fm; atomic no: 100; half-life of most stable isotope, 257Fm: 80 days (approx.) 0
  • noun fermium a radioactive, metallic chemical element, one of the actinides, produced by intense neutron bombardment of plutonium, as in a cyclotron: symbol, Fm; at. no., 100 0
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