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
Sorry, no etymologies found.