Severe overheating of the core of a nuclear reactor resulting in the core melting and potentially in radiation escaping.
Four years have passed since the meltdown at the Chernobyl nuclear plant, but the grim legacy of the Soviet catastrophe is still unfolding. https://web.archive.org/web/20041130094534/http://www.time.com/time/daily/chernobyl/chernobyl.index.html
A situation being likened to a nuclear meltdown; a crisis.
Channel 4 switchboards went into meltdown this week when viewers called to complain about a Brass Eye programme on child sex.
A tantrum or emotional outburst.
I had a major meltdown at work today. After being instructed one more time about additional work that I was to delegate to my direct reports, I snapped, but in a very polite manner.
Deverbal from melt down.
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