expression, noun
dirty bomb; radiological dispersal device
A weapon that combines conventional explosives with radioactive material, designed to contaminate an area.
テロリストが汚い爆弾を使う可能性が懸念されている。
There are concerns that terrorists might use a dirty bomb.
Compound of 汚い (dirty) and 爆弾 (bomb), a direct translation of the English term 'dirty bomb'.