Definitions for pu
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Random House Webster's College Dictionary
Pu*
plutonium.
Category: Chemistry
* Chem. Symbol..
Princeton's WordNet
plutonium, Pu, atomic number 94(noun)
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
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