Definition of mendelevium noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌmendəˈliːviəm//
; NAmE NAmE//ˌmendəˈliːviəm//
; BrE BrE//ˌmendəˈleɪviəm//
; NAmE NAmE//ˌmendəˈleɪviəm//
[uncountable] (symbol Md)
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a chemical element. Mendelevium is a radioactive element that does not exist naturally. Word Origin 1950s: modern Latin, from the name of D. Mendeleev (1834-1907), Russian chemist.
See the Oxford Advanced American Dictionary entry: mendelevium