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radioactive

  • adjective
  • /ˌɹeɪdiəʊˈaktɪv/

Exhibiting radioactivity.

Other meanings

  1. dangerous and disgusting, particularly of people or ideas.

    “Even sleazy tactics and his radioactive mouth may not be able to contain this debacle.”

Related words

  • radioactivate
  • nonradioactive
  • radioactive equilibrium
  • radioactive dating
  • radioactive decay
  • radioactive disintegration
  • radioactive fallout
  • radioactive tracer
  • radioactive waste
  • radioactively
  • radioactivity

Example sentences

  • “You shouldn't bathe in radioactive waste.”

    Tatoeba · ddnktr · CC0

Word history

From French "radioactif".

Where this comes from

This definition is adapted from “radioactive” on Wiktionary, by its contributors; example sentences are from Tatoeba, credited to their authors above, published under CC BY-SA 4.0. This page is published under the same licence.