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meltdown

[melt-doun] /ˈmɛltˌdaʊn/
noun
1.
the melting of a significant portion of a nuclear-reactor core due to inadequate cooling of the fuel elements, a condition that could lead to the escape of radiation.
2.
a quickly developing breakdown or collapse: a bond-market meltdown;
the meltdown of a marriage.
3.
Informal. a sudden loss of control over one’s feelings or behavior:
My toddler had a meltdown when I tried to leave the house.
Origin
1960-1965
1960-65; noun use of verb phrase melt down
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for meltdown
  • It's not a movie for the post-meltdown age but one for the post-9/11 age of devil-may-care vengeance.
  • Many of these kids have no formal education, because their countries were in a complete meltdown when they were growing up.
  • Virtually anything that caused stress disoriented them, and they quickly descended into pre-meltdown conditions.
  • More recently the overextended housing market collapsed, helping to trigger a credit meltdown.
  • The department had clearly had a meltdown and had a huge migration.
  • Add to the mix incentive pay in the form of commissions, and you have a recipe for a full-on educational meltdown.
  • Grandiose visions of the future often evaporate in the heat of an economic meltdown, and this one has its share of skeptics.
  • Tenure was already weak before the financial meltdown.
  • If you can get them out of whatever meltdown they're in, they are their normal sweet selves.
  • Neither format will affect the underlying problem that caused the financial meltdown.
British Dictionary definitions for meltdown

meltdown

/ˈmɛltˌdaʊn/
noun
1.
(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
2.
(informal) a sudden disastrous failure with potential for widespread harm, as a stock-exchange crash
3.
(informal) the process or state of irreversible breakdown or decline: the community is slowly going into meltdown
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for meltdown
n.

by 1937 in the ice-cream industry; by 1956 in reference to a nuclear reactor, from verbal phrase, from melt (v.) + down (adv.). Metaphoric extension since 1979.

Online Etymology Dictionary, © 2010 Douglas Harper
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meltdown in Science
meltdown
  (mělt'doun')   
Severe overheating of a nuclear reactor core, resulting in melting of the core and escape of radiation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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meltdown in Culture

meltdown definition


The most serious accident that can occur at a nuclear reactor. In a meltdown, the radioactive material in the reactor becomes very hot, melting some or all of the fuel in the reactor. A meltdown may or may not be followed by the release of radioactive material to the environment. A partial meltdown, with very little external radiation, occurred at Three Mile Island in 1979; a complete meltdown happened at Chernobyl in 1986.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang definitions & phrases for meltdown

megillah, the

noun phrase

Something very long and tedious told or explained exhaustively: I've been listening to all this here Megillah/Let's not have the megillah/a whole megilla (song and dance)

[1909+; fr Yiddish fr Hebrew, ''scroll, volume,'' esp the Book of Esther read aloud in its entirety at Purim celebrations]


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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meltdown in Technology
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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