WordReference Random House Unabridged Dictionary of American English © 2026
fu′sion bomb′. 
  1. MilitarySee hydrogen bomb. 
  • 1945–50

Collins Concise English Dictionary © HarperCollins Publishers::
fusion bomb
  1. a type of bomb in which most of the energy is provided by nuclear fusion, esp the fusion of hydrogen isotopes
    Also called: thermonuclear bomb, fission-fusion bomb
    See also hydrogen bomb
'fusion bomb' also found in these entries (note: many are not synonyms or translations):
atomic bomb - fission-fusion bomb - hydrogen bomb - nuclear warhead - thermonuclear bomb

Forum discussions with the word(s) "fusion bomb" in the title:


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