瀬せ戸と内ない海かいTop 25000MeaningsNoun1. Seto Inland Sea; Inland SeaKanji used瀬rapids戸door内inside海seaComposed of瀬せ戸とstrait; channelNoun内ない海かいinland sea; inlet; gulf; bayNounUsed in vocabulary瀬せ戸と内ない海かい環かん境きょう保ほ全ぜん審しん議ぎ会かいSeto Inland Sea Environmental Conservation CouncilNoun