atom bomb n 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) Synonym(s) atomic bomb A-bomb fission bomb plutonium bomb
News & Articles atom bomb Obituary: Richard Shubock / Marine served in WWII, ran own auto repair shop Richard Shubock never talked about the fighting or the horrors he witnessed and he never doubted the need to drop the atom bomb. Aug. 3, 2013 - Pittsburgh Post-Gazette