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atom bomb

noun
Origin
1940-1945
1940-45

atom-bomb

[at-uh m-bom] /ˈæt əmˈbɒm/
verb (used with object)
1.
to bomb (a target) with an atomic bomb.
verb (used without object)
2.
to atom-bomb a target.
Origin
1940-45
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for atom bomb

atomic bomb

noun
1.
a type of bomb in which the energy is provided by nuclear fission. Uranium-235 and plutonium-239 are the isotopes most commonly used in atomic bombs Also called A-bomb, fission bomb Compare fusion bomb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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