plutonium
英 [plu?'t??n??m]
美[plu'ton??m]
- n. [化學(xué)] 钚（94號元素）
英英釋意
- 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