Definition of radioactive

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  • radioactive is a valid Scrabble US word with a point value of 17
  • radioactive is a valid Scrabble UK word with a point value of 17
  • radioactive is a valid Words with friends word with a point value of 19

Definition of radioactive

  • exhibiting or caused by radioactivity (adjective)

    Examples

    1. radioactive isotope
    2. radioactive decay
    3. radioactive fallout

See definition of radioactive in Merriam Webster