dubnium
noun/ˈdʌbniəm/, /ˈduːbniəm/
/ˈdʌbniəm/, /ˈduːbniəm/
[uncountable] (symbol Db)
- a radioactive chemical element. Dubnium is produced when atoms crash into each other.Word Origin1990s: modern Latin, from Dubna in Russia, site of the Joint Nuclear Institute.
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dubnium