dirty bomb

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dirty bomb

an explosive device that disperses radioactive material over a wide area, contaminating land, buildings, and people. Its purpose is to cause fear and to make an area unusable for a long time.
A conventional bomb—i.e., explosive delivery device—which would contain high-level radioactive waste or subnuclear weapons-grade material and theoretically contaminate a wide area with radioactivity

dir·ty bomb

(dĭr'tē bom)
A mass-casualty weapon that combines some sort of radioactive material with conventional explosives.

dirty bomb

A weapon that disperses into the environment low-level radioactive material bonded to a conventional explosive.
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