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cadmium

noun
/ˈkædmiəm/
/ˈkædmiəm/
[uncountable]
(symbol Cd)
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  1. a chemical element. Cadmium is a soft poisonous blue-white metal that is used in batteries and nuclear reactors.
    Word Originearly 19th cent.: from Latin cadmia ‘calamine’, so named because it is found with calamine in zinc ore. Compare with calamine.

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