radioactive
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- a exhibiting or caused by radioactivity
radioactive isotope
radioactive decay
radioactive fallout
- How had the radioactive steam escaped from the reactor building? Again, said the company spokesmen, this was intentional.
- A dirty bomb is a conventional explosive salted with radioactive isotopes in order to spew out that nuclear material and contaminate a wide area.
- It is not merely the radioactive mess left by the 1986 meltdown.