しゅんかんゆわき 瞬間湯沸かし器 LinksSentence search for 瞬間湯沸かし器Sentence search for しゅんかんゆわかしきSentence search for 瞬間湯沸し器Kanji details for 瞬, 間, 湯, 沸 and 器Edit in JMdict Noun1. instantaneous water heater; on-demand water heaterNoun2. irritable person; hot-tempered personColloquialOther forms瞬間湯沸し器 【しゅんかんゆわかしき】 Discussions Log in to talk about this word.