| 单词 | plutonium |
| 释义 | plutonium /plooh toh"nee euhm/, n. Chem., Physics. a transuranic element with a fissile isotope of mass number 239 (plutonium 239) that can be produced from non-fissile uranium 238, as in a breeder reactor. Symbol: Pu; at. no.: 94. [1940-45; < Gk Ploúton PLUTO + -IUM] |
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