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{%type%} Definitions

WordNet 3.0Copyright Princeton University


Short "hint"

Giving off energy as a result of the breaking up of nuclei of atoms.

Usage examples (35)
  • When encountered, their sudden richness is so breathtaking and light-intensive that, like radioactive materials, they must be handled with great care.
  • radioactive isotope
  • NGUYEN: And hence the term radioactive, which you just referred to.
  • It is believed the packages may contain radioactive material. for more
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