noun Date: 1956 the accidental melting of the core of a nuclear reactor, a rapid or disastrous decline or collapse, a breakdown of self-control (as from fatigue or overstimulation)
MELTDOWN
Meaning of MELTDOWN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012