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watershed SimpleWikiWiktionaryGoogle検索CollinsCambridgeLongmanLongman英和Learners 【 100476 】 【意味】 "[名詞] the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet [例] flood control in the Missouri basin [例] The watershed is the area drained by a river. [例] The watershed is a very important part of the ecosystem. [例] They lived in the watershed of the river. [意味] 流域, 分水界, 流域面積, 盆地, 流域圏 ; [同義語] drainage basin, catchment area, river basin, basin, catchment basin, drainage area ; [上位語] geographical area, geographic area, geographic region, geographical region ; [下位語] retention basin, detention basin ; [同義語群] 08518940-n [名詞] a ridge of land that separates two adjacent river systems [例] The watershed separates the two rivers. [例] They wanted to hike to the watershed. [意味] 分水界, 分水嶺, 分水線, 境, 分類, 分水山脈, 分担, 分かれ目 ; [同義語] divide, water parting ; [上位語] line ; [下位語] Great Divide, continental divide ; [派生] divide, separate ; [同義語群] 08679369-n [名詞] an event marking a unique or important historical change of course or one on which important developments depend [例] the agreement was a watershed in the history of both nations [例] The discovery of the atomic bomb was a watershed in the history of the world. [例] He believed that the discovery of the vaccine was a watershed in the history of medicine. [意味] 分水嶺, 転機, 分岐点, 転換点, 界, 境, 曲がり角, 曲り角 ; [同義語] turning point, landmark ; [上位語] occasion, juncture ; [下位語] Fall of Man, road to Damascus ; [同義語群] 07417851-n"