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Vinony

meitnerium

noun

  1. chemical element with atomic number 109
L18304 on Wikidata ↗

Wiktionary

Pronunciation: /maɪtˈnɪəɹi.əm/

noun

Etymology: From Meitner + -ium; named for Lise Meitner.

  1. A transuranic chemical element (symbol Mt) with atomic number 109.