炉ろ心しんTop 15000MeaningsNoun1. nuclear reactor coreKanji used炉furnace心heartPitch accentろしんUsed in vocabulary緊きん急きゅう炉ろ心しん冷れい却きゃく装そう置ちemergency core cooling system; ECCSNoun炉ろ心しん溶よう融ゆうcore meltdown; meltdown; nuclear reactor core meltdownNoun