| NOUN | artifact | fusion bomb, hydrogen bomb, H-bomb, thermonuclear bomb | a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium |
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| Meaning | A nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium. | |
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| Synonyms | hydrogen bomb, H-bomb, thermonuclear bomb | |
| Broader | bomb | An explosive device fused to explode under specific conditions |
| nuclear weapon, atomic weapon | A weapon of mass destruction whose explosive power derives from a nuclear reaction | |