炉心 ろしん Meanings Noun nuclear reactor core Kanji 炉 furnace. Read as ロ. 心 heart. Read as シン. Words containing 炉心 炉心溶融 (ろしんようゆう) core meltdown 緊急炉心冷却装置 (きんきゅうろしんれいきゃくそうち) emergency core cooling system Jinuma: Japanese Dictionary · Word lists