| atom 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) (Freq. 1)
 • Syn:
 atomic bomb, A-bomb, fission bomb, plutonium bomb
 • Hypernyms:
 nuclear weapon, atomic weapon, bomb
 • Hyponyms:
 clean bomb, dirty bomb, neutron bomb
 • Part Meronyms:
 plutonium trigger, plutonium pit
 
 
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