Berkelium

/bɜːɹˈkiːliəm/ noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A transuranic chemical element (symbol Bk) with an atomic number of 97. uncountable
  2. 2
    a radioactive transuranic element; discovered by bombarding americium with helium wordnet

Etymology

After Berkeley, California, because of discovery at UC Berkeley, + -ium.

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