でんこうせっか 電光石火 LinksSentence search for 電光石火Sentence search for でんこうせっかKanji details for 電, 光, 石 and 火Edit in JMdict Noun, Noun which may take the genitive case particle 'no'1. flash; instant; lightning (speed)Yojijukugo (four character compound) Discussions Log in to talk about this word.