げんしかくほうかい 原子核崩壊 LinksSentence search for 原子核崩壊Sentence search for げんしかくほうかいKanji details for 原, 子, 核, 崩 and 壊Edit in JMdict Noun1. nuclear decayPhysics, Rare term, See also 放射性崩壊 Discussions Log in to talk about this word.