Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun melt_down

2 senses of meltdown

Sense 1
meltdown, nuclear meltdown -- (severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping)
       => overheating -- (excessive heating)

Sense 2
meltdown -- (a disaster comparable to a nuclear meltdown; "there is little likelihood of a meltdown comparable to the American banking collapse in March 1933")
       => calamity, catastrophe, disaster, tragedy, cataclysm -- (an event resulting in great loss and misfortune; "the whole city was affected by the irremediable calamity"; "the earthquake was a disaster")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb melt_down

1 sense of melt down

Sense 1
melt, run, melt down -- (reduce or cause to be reduced from a solid to a liquid state, usually by heating; "melt butter"; "melt down gold"; "The wax melted in the sun")
       => dissolve, resolve, break up -- (cause to go into a solution; "The recipe says that we should dissolve a cup of sugar in two cups of water")