kadmium
- A misspelling or variant of 'cadmium', a chemical element with the symbol Cd and atomic number 48. It is a soft, bluish-white metal that is chemically similar to zinc and mercury. nounThe artist mistakenly labeled the paint as 'kadmium' instead of 'cadmium'.The factory was fined for improper disposal of 'kadmium', which was actually cadmium waste.