Definition of meitnerium in English:

meitnerium

Syllabification: meit·ner·i·um
Pronunciation: /mītˈni(ə)rēəm
 
/

noun

  • The chemical element of atomic number 109, a very unstable element made by high-energy atomic collisions. (Symbol: Mt)
    More example sentences
    • Element 109 is named meitnerium, for Lise Meitner, who was the first to realize that uranium undergoes nuclear fission.
    • They have anywhere from 13 isotopes to one isotope (e.g., hassium and meitnerium).
    • The German proposal of ‘meitnerium ‘for 109 was allowed to stand, as were the names proposed for elements 101, 102, and 103 - ‘mendelevium, ‘‘nobelium, ‘and ‘lawrencium, ‘respectively.’

Origin

modern Latin, from the name of L. Meitner (see Meitner, Lise).

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