plutonium-239
noun1
Natural sciences, Physical sciences, Physics A radioactive and fissile isotope of plutonium, 23994Pu, having a half-life of 24,000 years.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
Natural sciences, Physical sciences, Physics A radioactive and fissile isotope of plutonium, 23994Pu, having a half-life of 24,000 years.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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