Jisho

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Noun
1. core meltdown; meltdown; nuclear reactor core meltdown
Wikipedia definition
2. Nuclear meltdownNuclear meltdown is an informal term for a severe nuclear reactor accident that results in core damage from overheating. The term is not officially defined by the International Atomic Energy Agency or by the U.S. Nuclear Regulatory Commission. However, it has been defined to mean the accidental melting of the core of a nuclear reactor, and is in common usage a reference to the core's either complete or partial collapse.
Read “Nuclear meltdown” on English Wikipedia
Read “炉心溶融” on Japanese Wikipedia
Read “Nuclear meltdown” on DBpedia
Other forms
炉心熔融 【ろしんようゆう】

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