meltdown
noun Date: 1956 1. the accidental melting of the core of a nuclear reactor 2. a rapid or disastrous decline or collapse 3. a breakdown of self-control (as from fatigue or overstimulation)

New Collegiate Dictionary. 2001.

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  • Meltdown — is a term generally referring to a nuclear meltdown or the melting of a nuclear reactor core as a result of a serious nuclear accident. The term has also been borrowed to describe the following: The Subprime mortgage crisis A tantrum Meltdown… …   Wikipedia

  • meltdown — melt‧down [ˈmeltdaʊn] noun [singular] ECONOMICS a situation in which prices fall by a very large amount or an industry or economy becomes much weaker: • A near meltdown in overseas stock markets sent U.S. prices plunging for the third consecutive …   Financial and business terms

  • Meltdown — (engl. schmelzen) bezeichnet eine unter dem Namen Meltdown gegründete Thrash Metal Band aus Pittsburgh, siehe Mantic Ritual einen US amerikanischen Katastrophenfilm, siehe Meltdown – Days of Destruction Diese Seite ist eine Begriffsklärun …   Deutsch Wikipedia

  • meltdown — (n.) by 1937 in the ice cream industry; by 1956 in reference to a nuclear reactor, from verbal phrase, from MELT (Cf. melt) (v.) + DOWN (Cf. down) (adv.). Metaphoric extension since 1979 …   Etymology dictionary

  • meltdown — ► NOUN 1) an accident in a nuclear reactor in which the fuel overheats and melts the reactor core. 2) a disastrous collapse or breakdown …   English terms dictionary

  • meltdown — [melt′doun΄] n. 1. a situation in which a rapid rise in the power level of a nuclear reactor, as from a defect in the cooling system, results in the melting of the fuel rods and the release of dangerous radiation and may cause the core to sink… …   English World dictionary

  • Meltdown — Pour les articles homonymes, voir Meltdown (homonymie). Meltdown Personnage de fiction apparaissant dans …   Wikipédia en Français

  • meltdown — [[t]me̱ltdaʊn[/t]] meltdowns 1) N VAR If there is meltdown in a nuclear reactor, the fuel rods start melting because of a failure in the system, and radiation starts to escape. Scientists warned that emergency cooling systems could fail and a… …   English dictionary

  • meltdown — noun a) Severe overheating of the core of a nuclear reactor resulting in the core melting and radiation escaping. Four years have passed since the meltdown at the Chernobyl nuclear plant, but the grim legacy of the Soviet catastrophe is still… …   Wiktionary

  • meltdown — UK [ˈmeltˌdaʊn] / US noun [countable/uncountable] Word forms meltdown : singular meltdown plural meltdowns 1) physics an accident in a nuclear reactor in which the temperature increases in the nuclear fuel until it melts and bursts through its… …   English dictionary

  • meltdown — n. a total collapse of anything. (From the term used to describe the self destruction of a nuclear reactor.) □ There seems to have been a meltdown in the computer center, and all our records were lost. □ The meltdown in the securities markets was …   Dictionary of American slang and colloquial expressions

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