core meltdown — n. melting down of the radioactive core in a nuclear reactor because of insufficient cooling that leads to the escape of radiation … English contemporary dictionary
Nuclear reactor core — Example of the core of a nuclear power plant, a VVER design. A nuclear reactor core is the portion of a nuclear reactor containing the nuclear fuel components where the nuclear reactions take place. Contents … Wikipedia
Core damage frequency — (CDF) is a term used in probabilistic risk assessment (PRA) that indicates the likelihood of an accident that would cause damage to a nuclear reactor core.[1][2][3] Core damage accidents are considered serious because damage to the core may… … Wikipedia
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 — ► 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 down /, n. 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. [1960 65; n. use of v. phrase melt down] * * * Occurrence in… … Universalium
meltdown — noun 1》 an accident in a nuclear reactor in which the fuel overheats and melts the reactor core or shielding. 2》 a disastrous collapse or breakdown … English new terms dictionary
meltdown — melt•down [[t]ˈmɛltˌdaʊn[/t]] n. 1) phs ene the melting of a significant portion of a nuclear reactor core due to inadequate cooling of the fuel elements 2) cvb any quickly developing breakdown, mishap, or accident • Etymology: 1960–65 … From formal English to slang
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
core melt — core melt, the melting of the core of a nuclear reactor; meltdown … Useful english dictionary
Nuclear reactor — Core of CROCUS, a small nuclear reactor used for research at the EPFL in Switzerland This article is a subarticle of Nuclear power. A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are… … Wikipedia