meltdown
noun /ˈmeltdaʊn/
/ˈmeltdaʊn/
[uncountable, countable]- a serious accident in which the central part of a nuclear reactor melts, causing harmful radiation to escape
- (economics) a situation where something fails or becomes weaker in a sudden or dramatic way
- in meltdown The country is in economic meltdown.
- a meltdown on the New York Stock Exchange