PU

1. 1.

   n a solid silvery grey 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 plutonium 239

   物理单元；[医] 钚(94号元素)

[医] 钚(94号元素)