radioactive adjective

/ˌreɪ.di.əʊˈæk.tɪv/

/-oʊ-/ adj

Definition

having or producing the energy which comes from the breaking up of atoms

Uranium is a radioactive material.

radioactive waste

(Definition of radioactive adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Synonyms and related words:

worried or nervous about something that is going to happen

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