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Radioactivity   /rˈeɪdioʊæktˈɪvəti/  /rˌeɪdioʊæktˈɪvəti/   Listen
Radioactivity

noun
1.
The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.  Synonym: radiation.



Related search:
radioactivity unit


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"Radioactivity" Quotes from Famous Books



... inside—but the danger of a failure of politics was far more real than the danger of failure in the science of the power pile, and that had not been calculated by the builders. We were far underground when the first radioactivity in the air outside had shut all the heavy, lead-shielded automatic doors ...
— The Carnivore • G. A. Morris


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