atom bomb

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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