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English Dictionary: Hafnium by the DICT Development Group
2 results for Hafnium
From WordNet (r) 3.0 (2006) [wn]:
  1. a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
    Synonym(s): hafnium, Hf, atomic number 72
From The Elements (22Oct97) [elements]:
   Symbol: Hf
   Atomic number: 72
   Atomic weight: 178.49
   Silvery lustrous metallic transition element. Used in tungsten alloys in
   filaments and electrodes, also acts as a neutron absorber. First reported
   by Urbain in 1911, existence was finally established in 1923 by D. Coster,
   G.C. de Hevesy in 1923.
No guarantee of accuracy or completeness!
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