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 Chemical Elements Table
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More Definitions for francium
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 Chemical Elements Table