Dictionary

cesium

noun ce·si·um \ˈsē-zē-əm also -zhē-\

Definition of CESIUM

:  a silver-white soft ductile element of the alkali metal group that is the most electropositive element known and that is used especially in photoelectric cells — see element table

Origin of CESIUM

New Latin, from Latin caesius bluish gray
First Known Use: 1861

cesium

noun ce·si·um   (Medical Dictionary)

Medical Definition of CESIUM

:  a silver-white soft ductile element of the alkali metal group that is the most electropositive element known and that is used especially in photoelectric cells—symbol Cs; see element table

Variants of CESIUM

ce·si·um or chiefly British cae·si·um \ˈsē-zē-əm\

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May 24, 2015
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