meltdown has definitions from the field of physics
1
[ noun ] (physics) severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping

Synonyms

nuclear_meltdown

Related terms

overheating

2
[ noun ] a disaster comparable to a nuclear meltdown

Examples

"there is little likelihood of a meltdown comparable to the American banking collapse in March 1933"

Related terms

calamity

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