atom bomb
noun
1.
atomic bomb
.
Origin
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
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