californium

noun
cal·​i·​for·​ni·​um | \ˌka-lə-ˈfȯr-nē-əm \

Definition of californium 

: a radioactive element discovered by bombarding curium 242 with alpha particles — see Chemical Elements Table

First Known Use of californium

1950, in the meaning defined above

History and Etymology for californium

New Latin, from California, U.S.

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The first known use of californium was in 1950

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californium

noun
cal·​i·​for·​ni·​um | \ˌkal-ə-ˈfȯr-nē-əm \

Medical Definition of californium 

: an artificially prepared radioactive element discovered by bombarding an isotope of curium with alpha particles symbol Cf — see Chemical Elements Table

More from Merriam-Webster on californium

Britannica.com: Encyclopedia article about californium

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