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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plutonium::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Synonyms | atomic number 94, pu |
| Type of | chemical element, element |
| Has types | plutonium 239 |
