Definition of cadmium noun from the Oxford Advanced Learner's Dictionary

 

cadmium

 noun
noun
BrE BrE//ˈkædmiəm//
 
; NAmE NAmE//ˈkædmiəm//
 
[uncountable](symbol Cd)
 
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a chemical element. Cadmium is a soft poisonous bluish-white metal that is used in batteries and nuclear reactors. Word Origin early 19th cent.: from Latin cadmia ‘calamine’, so named because it is found with calamine in zinc ore. Compare with calamine.
See the Oxford Advanced American Dictionary entry: cadmium