First Known Use: 1946
Dictionary
francium
noun fran·ci·um \ˈfran(t)-sē-əm\
Definition of FRANCIUM
: a short-lived radioactive element of the alkali-metal group occurring naturally as a disintegration product of actinium and also produced artificially — see element table
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Origin of FRANCIUM
New Latin, from France
Medical Dictionary
francium
noun fran·ci·um \ˈfran(t)-sē-əm\
Medical Definition of FRANCIUM
: a radioactive element of the alkali-metal group discovered as a disintegration product of actinium and obtained artificially by the bombardment of thorium with protons—symbol Fr; see element table
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