1. (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)

• a-bomb
• atom bomb
• atomic bomb
• fission bomb

1. (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)

• atomic weapon
• nuclear weapon
• bomb

1. (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)

• clean bomb
• dirty bomb
• neutron bomb