cesium
ce·si·um
noun \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
See Origin of CESIUM
New Latin, from Latin caesius bluish gray
First Known Use: 1861
Learn More About CESIUM
Browse
Next Word in the Dictionary: cesium 133
Previous Word in the Dictionary: cesarolite
All Words Near: cesium
Previous Word in the Dictionary: cesarolite
All Words Near: cesium
Seen & Heard 
What made you want to look up cesium? Please tell us where you read or heard it (including the quote, if possible).
