- enriched plutonium
- radioactive material used to produce nuclear weapons
English contemporary dictionary. 2014.
enriched plutonium
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Plutonium — (pronEng|pluːˈtoʊniəm, symbol Pu, atomic number 94) is a rare radioactive, metallic chemical element. The most significant isotope of plutonium is 239Pu, with a half life of 24,100 years; this isotope is fissile and is used in most modern nuclear … Wikipedia
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