'hahnium' definitions:

Definition of 'hahnium'

From: WordNet
noun
A transuranic element [syn: dubnium, Db, hahnium, element 105, atomic number 105]

Definition of 'hahnium'

From: Elements
  • Symbol: Ha
  • Competing name for unnilpentium, the 105th element, proposed by the American Chemical Society. Also a competing name for unniloctium, the 108th element, proposed by the IUPAC. Both were chosen in honor of German researcher, Otto Hahn.