らいうん 雷雲 LinksSentence search for 雷雲Sentence search for らいうんSentence search for かみなりぐもSentence search for いかずちぐもKanji details for 雷 and 雲Edit in JMdict Noun1. thundercloudOther forms雷雲 【かみなりぐも】、雷雲 【いかずちぐも】Notesいかずちぐも: Out-dated or obsolete kana usage. Discussions Log in to talk about this word.