radioactive material

/ˌˈreɪdioʊˌæktɪv məˌtɪriəl/
IPA guide

Other forms: radioactive materials

Definitions of radioactive material
  1. noun
    material that is radioactive
    see moresee less
    types:
    radioactive waste
    useless radioactive materials that are left after some laboratory or commercial process is completed
    high-level radioactive waste
    radioactive waste that left in a nuclear reactor after the nuclear fuel has been consumed
    low-level radioactive waste
    (medicine) radioactive waste consisting of objects that have been briefly exposed to radioactivity (as in certain medical tests)
    type of:
    material, stuff
    the tangible substance that goes into the makeup of a physical object
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