from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A nuclear bomb, especially a hydrogen bomb, that derives its released energy principally from fusion reactions among light nuclei.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An atomic bomb that uses nuclear fusion as a source of energy; a hydrogen bomb

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a nuclear weapon that releases atomic energy by union of light (hydrogen) nuclei at high temperatures to form helium


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