'hahnium' definitions:
Definition of 'hahnium'
From: WordNet
noun
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.