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|Noun||1.||plutonium bomb - a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239)|
bomb - an explosive device fused to explode under specific conditions
clean bomb - an atom bomb leaving little or no radioactive contamination
dirty bomb - an atom bomb that leaves considerable radioactive contamination
neutron bomb - atom bomb that produces lethal neutrons with less blast
atomic weapon, nuclear weapon - a weapon of mass destruction whose explosive power derives from a nuclear reaction