Definition of fallout in English:



  • 1Radioactive particles that are carried into the atmosphere after a nuclear explosion and gradually fall back as dust or in precipitation:

    [as modifier] ‘a fallout shelter’
    • ‘Winds routinely carried radioactive fallout to communities in Utah, Nevada and northern Arizona.’
    • ‘The antidote is intended to protect residents from radioactive fallout from any missile attack on the nuclear station.’
    • ‘These produce a relatively small explosion and less radioactive fallout than other designs.’
    • ‘Belarus was one of the territories affected by the radioactive fallout from the Chernobyl nuclear reactor disaster in 1986.’
    • ‘A serious accident at Sellafield could shower Ireland with radioactive fallout.’
    adverse reaction, adverse response, counteraction, counterblast, comeback, recoil
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    1. 1.1[usually with modifier] Airborne substances resulting from an industrial process or accident:
      ‘acid fallout from power stations’
      • ‘The dust was found on analysis to contain ‘significant quantities’ of power station fallout.’
      • ‘Specific images could be drafted for specific problems: like environmental decay related to fertilizer abuse, or the Carbon dioxide fallout of ongoing activities.’
      • ‘Only in the past 5 years have scientists seriously considered that such gaseous oxidants might affect mercury fallout.’
      • ‘They mainly aim at containing the fallout of carbon dioxide but fail to deal with the volume of carbon-intensive inputs in the first place.’
      • ‘The agency is being pressed to approve a 25 per cent increase in the limit of the acid rain-producing fallout from Drax power station near Selby.’
  • 2The adverse results of a situation or action:

    ‘he's prepared to take calculated risks regardless of political fallout’
    • ‘As well as the toll taken by the increasing use of hard drugs, there was the psychological and spiritual fallout that resulted from abuses of dignity and personal boundaries.’
    • ‘Alternately naïve and sinister, the children reflect the emotional fallout resulting from decades of unrest in the region.’
    • ‘The prosecutors must also consider the possible negative economic fallout that likely will result at a time when the economy is already struggling.’
    • ‘Of course, the fallout is that any of us who are different suffer or [are] potentially slated to suffer.’
    • ‘Any unfavourable decision vis-a vis an inter-State dispute is bound to result in a political fallout.’
    repercussions, after-effects, by-product, fallout, backwash, trail, wake, corollary
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