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English noun: Pu

1. Pu (substance) 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


Synonymsatomic number 94, plutonium


Broader (hypernym)chemical element, element


Narrower (hyponym)plutonium 239









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