せいなんにほんないたい 西南日本内帯 LinksSentence search for 西南日本内帯Sentence search for せいなんにほんないたいKanji details for 西, 南, 日, 本, 内 and 帯Edit in JMdict Noun1. area of southwestern Japan north of the Median Tectonic LineSee also 西南日本 Discussions Log in to talk about this word.