げんしぐも 原子雲 LinksSentence search for 原子雲Sentence search for げんしぐもSentence search for げんしうんKanji details for 原, 子 and 雲Edit in JMdict Noun1. atomic cloudOther forms原子雲 【げんしうん】Notesげんしうん: Irregular kana usage. Discussions Log in to talk about this word.