from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An explosive weapon of great destructive power derived from the rapid release of energy in the fission of heavy atomic nuclei, especially of uranium-235 or plutonium-239.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A
nuclear weaponthat obtains its destructive energyfrom nuclear fission
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239)
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