mendelevium
noun /ˌmendəˈliːviəm/, /ˌmendəˈleɪviəm/
/ˌmendəˈliːviəm/, /ˌmendəˈleɪviəm/
[uncountable] (symbol Md)
- a chemical element. Mendelevium is a radioactive element that does not exist naturally.Word Origin1950s: modern Latin, from the name of D. Mendeleev (1834-1907), Russian chemist.