Definition of fallout noun from the Oxford Advanced American Dictionary

     

    fallout

     noun
    noun
    NAmE//ˈfɔlaʊt//
     
    [uncountable]
     
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  1. 1dangerous radioactive dust that is in the air after a nuclear explosion
  2. 2the bad results of a situation or an action the political fallout of the current crisis
See the Oxford Advanced Learner's Dictionary entry: fallout