plutonium
英 [pluː'təʊnɪəm]
美[plu'tonɪəm]
- n. [化学] 钚（94号元素）
英英释意
- 1. a solid silvery gray radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being pl