meltdown

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meltdown

(in a nuclear reactor) the melting of the fuel rods as a result of a defect in the cooling system, with the possible escape of radiation into the environment

meltdown

[′melt‚dau̇n]
(nucleonics)
An accident in a nuclear reactor in which melting of the fuel core occurs.

meltdown

meltdown

The total cessation of operation of a computer system or network. A system meltdown can be caused by hardware or software. A network meltdown can be caused by hardware, software or excessive traffic.
References in periodicals archive ?
Since the March 2011 earthquake and tsunami triggered the nuclear crisis, TEPCO has continued to grapple with massive amounts of radioactive water that have accumulated inside the plant as a result of continuing water injections into the meltdown reactors.
If the temperature of spent nuclear fuel is allowed to increase unchecked it can potentially reach the point where a nuclear reaction begins, leading to a meltdown.
Their fears were confirmed when Kitty had a meltdown during bootcamp.
Some analysts said the delay in confirming the meltdowns suggested the utility feared touching off panic by disclosing the severity of the accident.
That would follow a blast on Saturday in the power plant's Unit 1, as operators attempted to prevent a meltdown by injecting sea water into it.
At the end of the chapter, it is made clear to the reader that meltdowns "reflect a combination of immature brain development and a learning history in which such outbursts have been rewarded" (p.
Using an easy-to-follow, four-step model, the author helps parents accept their children "even when they're driving you crazy," understand why a meltdown keeps happening, and deescalate and prevent meltdowns.
According to one expert quoted by the Journal, the recent dot-com meltdown has wiped out so many fortunes and derailed so many careers that victims are seeking inspiration from individuals who have survived similar disasters.
While the Japan Nuclear Energy Safety Organization said such a simulation "would stir concerns among local residents," the exclusion of the meltdown scenario from the disaster prevention drill has been criticized as an inadequate crisis response.