HyperDic English WEAPON ... weapons-grade plutonium

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English 1 sense of the expression *weapons-grade plutonium*:
NOUN	substance	weapons-grade plutonium, weapons plutonium	plutonium 239 that is recovered when nuclear weapons are disassembled

Englishweapons-grade plutonium: 1 sense noun 1, substance
Meaning	plutonium 239 that is recovered when nuclear weapons are disassembled; it is stored in plutonium pits.
Synonym	weapons plutonium
Broader	plutonium 239	A highly fissionable isotope of plutonium that is used in atomic weapons and as a reactor fuel

HyperDicEnglishWEAPON ... weapons-grade plutonium