Meitnerium

//maɪtˈnɪəɹi.əm// noun

Definitions

Noun
  1. 1
    A transuranic chemical element (symbol Mt) with atomic number 109. uncountable
  2. 2
    a radioactive transuranic element, with atomic number 109 wordnet

Etymology

From Meitner + -ium; named for Lise Meitner.

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