meltdown

noun melt·down \ ˈmelt-ˌdau̇n \

Definition of meltdown

1 :the accidental melting of the core of a nuclear reactor
2 :a rapid or disastrous decline or collapse
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.

Recent Examples of meltdown from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'meltdown.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of meltdown

1956


melt down

verb

Definition of melt down

intransitive verb
:to suffer a meltdown :collapse

Examples of melt down in a Sentence

  1. apparently beset by personal problems, the actor proceeded to melt down before startled theatergoers

First Known Use of melt down

1956

melt down Synonyms

Synonyms
break down, break up, flip (out) [slang], freak (out), crack, wig (out) [slang]
Related Words
choke

MELTDOWN Defined for English Language Learners

meltdown

noun

Definition of meltdown for English Language Learners

  • : 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



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