• The common reason many comic book [superheroes] have [superpowers]. A prime example would be the [Fantastic Four].


    Radioactivity meaning & definition 1 of Radioactivity.


  • The emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.

    Radioactivity meaning & definition 2 of Radioactivity.


  • the quality that some atoms have of producing a type of energy that can be very harmful to health

    Radioactivity meaning & definition 3 of Radioactivity.


  • the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

    Radioactivity meaning & definition 4 of Radioactivity.

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This page shows you usage and meanings of Radioactivity around the world.