plutonium-239

noun

A radioactive and fissile isotope of plutonium, 23994Pu, having a half-life of 24,000 years.

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Meanings

nounplutonium-239 (uncountable)
  1. uncountablenatural sciencesA radioactive and fissile isotope of plutonium, 23994Pu, having a half-life of 24,000 years.
Cite this entry
APA

plutonium-239. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/plutonium-239

MLA

“plutonium-239.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/plutonium-239. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “plutonium-239,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/plutonium-239.

Source: plutonium-239 on Wiktionary, CC BY-SA 4.0.