Synonyms for pu
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- 1. plutonium, Pu, atomic number 94, chemical element, element
- usage: 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
See also: pu (Dictionary)