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ununnilium

[ uhn-uh-nil-ee-uhm ]

noun

, Chemistry, Physics.
  1. former name of darmstadtium. : Uun

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Word History and Origins

Origin of ununnilium1

From Latin ūn(us) “one” + ūn(us) “one” + nīl “nothing” + New Latin -ium; one ( def ), nil, -ium

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