Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
plutonium 239 | Yes | No | No | No |
Pu | Yes | No | No | No |
plutonium 239 (noun) | Pu (noun) |
---|---|
a highly fissionable isotope of plutonium that is used in atomic weapons and as a reactor fuel; produced by irradiating uranium 238 with slow electrons | 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 |