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atom-bomb

 - 4 dictionary results

at⋅om-bomb

  [at-uhm-bom]
–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

atomic bomb

 
–noun
1. a bomb whose potency is derived from nuclear fission of atoms of fissionable material with the consequent conversion of part of their mass into energy.
2. a bomb whose explosive force comes from a chain reaction based on nuclear fission in U-235 or plutonium.
Also, atom bomb.
Also called A-bomb, fission bomb.

Origin:
1910–15
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To atom-bomb
Science Dictionary
atomic bomb  
A very destructive bomb that derives its explosive power from the fission of atomic nuclei. Atomic bombs usually have plutonium 239 or uranium 235 as their fissionable material. Also called atom bomb.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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