Definition of hahnium in English:


Syllabification: hahn·i·um
Pronunciation: /ˈhänēəm


  • The name formerly proposed by the American Chemical Society for the chemical element of atomic number 105 ( dubnium), and by IUPAC for element 108 ( hassium).
    More example sentences
    • The heaviest element whose discovery has been previously confirmed is element 105, hahnium.
    • The name ‘bohrium ‘was recommended for 107 (instead of GSI's choice of nielsbohrium), and ‘hahnium ‘for 108 (instead of GSI's choice of hassium).’
    • Some scientists still use the earlier name of hahnium because it had been used for about 25 years.


1970s: named in honor of O. Hahn (see Hahn, Otto).

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