radioactive waste
US /ˌreɪ.di.oʊˈæk.tɪv weɪst/
UK /ˌreɪ.di.oʊˈæk.tɪv weɪst/
1.
waste products containing radioactive materials, especially those produced by nuclear power stations and the processing of nuclear fuel, that are difficult and expensive to dispose of safely
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The safe disposal of radioactive waste is a major environmental challenge.
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Storing radioactive waste requires specialized facilities.