Dubnium
Origin
Named after Dubna in Russia.
Full definition of dubnium
Noun
dubnium
(uncountable)- A transuranic chemical element (symbol Db) with atomic number 105.
- (chemistry, obsolete) A rejected name for rutherfordium.
Synonyms
- eka-tantalum used before the element was discovered
- hahnium (proposed by American scientists, but rejected; still used by some Western scientists; see also hassium)
- joliotium (proposed by the IUPAC, but rejected)
- nielsbohrium (proposed by Russian scientists, but rejected)
- unnilpentium (used before the element had been officially named to avoid disputes between Western and Russian scientists over "hahnium" and "dubnium" respectively)