lawrencium

noun
law·ren·ci·um | \ lȯ-ˈren(t)-sē-əm \

Definition of lawrencium 

: a short-lived radioactive element produced artificially — see Chemical Elements Table

First Known Use of lawrencium

1961, in the meaning defined above

History and Etymology for lawrencium

New Latin, from Ernest O. Lawrence

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The first known use of lawrencium was in 1961

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lawrencium

noun
law·ren·ci·um | \ lȯ-ˈren(t)-sē-əm \

Medical Definition of lawrencium 

: a short-lived radioactive element that is produced artificially from californium symbol Lr — see Chemical Elements Table

More from Merriam-Webster on lawrencium

Britannica.com: Encyclopedia article about lawrencium

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occurring twice a year or every two years

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