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