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meltdown

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noun melt·down \ˈmelt-ˌdau̇n\

Simple Definition of meltdown

  • : an accident in which the core of a nuclear reactor melts and releases radiation

  • : a very fast collapse or failure

  • : a very fast loss of emotional self-control

Source: Merriam-Webster's Learner's Dictionary

Full Definition of meltdown

  1. 1 :  the accidental melting of the core of a nuclear reactor

  2. 2 :  a rapid or disastrous decline or collapse

  3. 3 :  a breakdown of self-control (as from fatigue or overstimulation)

Examples of meltdown in a sentence

  1. fears that an accident could cause meltdown

  2. a company experiencing financial meltdown

  3. After a long day at the beach, our toddler had a major meltdown in the car on the way home.



1956

First Known Use of meltdown

1956



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