dubnium
noun
dub·ni·um ˈdüb-nē-əm 
ˈdəb-
: a short-lived radioactive element produced artificially see Chemical Elements Table
Word History
Etymology
New Latin, from Dubna, city in Russia where a center for investigation of heavy elements is located
First Known Use
1994, in the meaning defined above
Medical Definition
dubnium
noun
dub·ni·um ˈdüb-nē-əm, ˈdəb-
: a short-lived radioactive element that is artificially produced —symbol Db see Chemical Elements Table
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