weapons-grade plutonium

Noun
  1. Plutonium 239 that is recovered when nuclear weapons are disassembled;
    It is stored in plutonium pits (synset 114674544)
    is a type of: plutonium 239 - 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
    same as: weapons plutonium

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