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

  • n. An explosive weapon of enormous destructive power caused by the fusion of the nuclei of various hydrogen isotopes in the formation of helium nuclei.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A thermonuclear bomb which derives its destructive power from the fusion of isotopes of hydrogen (deuterium and tritium).

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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