atomic bomb atomic • atomic clock · · · Info · Definitions · Synonyms · Characters · · atomic bomb · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (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). Synonyms: atom bomb, atomic bomb, A-bomb, fission bomb, plutonium bomb. · · Noun Definition 1 Synonyms · · · atom bomb · · Synonym 1 a-bomb · · Synonym 2 fission bomb · · Synonym 3 plutonium bomb · · Synonym 4 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F t latin small letter t U+0074