What is a synonym for "atom bomb"?

Common synonyms include: a-bomb, atomic bomb, fission bomb, plutonium bomb.

Atom bomb

noun

noun ·Rare ·Advanced level

Noun

1
Synonym of atomic bomb.
""A jet plane with an atom bomb is standing by.""
2
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) wordnet

""A jet plane with an atom bomb is standing by.""