dubnium
noun /ˈdʌbniəm/, /ˈduːbniəm/
/ˈdʌbniəm/, /ˈduːbniəm/
[uncountable] (symbol Db)
- a radioactive chemical element. Dubnium is produced when atoms crash into each other.
(人造化学放射性元素) 词源1990s: modern Latin, from Dubna in Russia, site of the Joint Nuclear Institute.