berkelium 1
noundomain: substance
Princeton WordNet [ver.3.1]
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EnglishDefinition
a radioactive transuranic element; discovered by bombarding americium with helium
Hypernym
any element having an atomic number greater than 92 (which is the atomic number of uranium); all are radioactive
any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
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