Definition of mendelevium in English:

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Pronunciation: /ˌmendəˈlēvēəm/


The chemical element of atomic number 101, a radioactive metal of the actinide series. It does not occur naturally and was first made in 1955 by bombarding einsteinium with helium ions. (Symbol: Md)
Example sentences
  • Californium - 249 has a half-life of 350 years; mendelevium - 258, fifty-one days; seaborgium - 266 twenty-one seconds.
  • The substance, named mendelevium (abbreviated Mv) [now Md] after the father of the periodic table, was produced by bombarding element 99 with energetic alpha particles from a cyclotron.
  • Besides probing fermium further, the team plans next to study element number 101, mendelevium, Backe says.


Modern Latin, from the name of D. Mendeleev (see Mendeleev, Dmitri).

For editors and proofreaders

Syllabification: men·de·le·vi·um

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