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meltdown - definition and synonyms

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noun [countable/uncountable]     meltdown pronunciation in American English
/ˈmeltˌdaʊn/
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singularmeltdown
pluralmeltdowns
  1. 1
    physics an accident in a nuclear reactor in which the temperature increases in the nuclear fuel until it melts and bursts through its container so that radiation comes out
  2. 2
    a sudden and complete failure of a company, organization, or system

    fear of a global financial meltdown

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the act or practice of telling the future using random items such as playing cards

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