americium

noun am·er·i·ci·um \ˌa-mə-ˈri-shē-əm, -sē-\

Definition of AMERICIUM

: a radioactive metallic element produced artificially by bombarding plutonium with high-energy neutrons — see element table

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New Latin, from America + New Latin -ium

First Known Use: 1946

Medical Dictionary

noun am·er·i·ci·um \ˌam-ə-ˈris(h)-ē-əm\

: a radioactive metallic element produced by bombardment of plutonium with high-energy neutrons—symbol Am; see element table

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