radium
ra·di·um
noun, often attributive \ˈrā-dē-əm\Definition of RADIUM
: an intensely radioactive brilliant white metallic element that resembles barium chemically, occurs in combination in minute quantities in minerals (as pitchblende or carnotite), emits alpha particles and gamma rays to form radon, and is used chiefly in luminous materials and in the treatment of cancer — see element table
See Origin of RADIUM
New Latin, from Latin radius ray
First Known Use: 1899
Rhymes with RADIUM
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