川かわうそ・うそ・おそ・だつ・カワウソ川獺表記・読み:獺・河獺・かわうそ・うそ・おそ・だつ・カワウソ1otter (Lutra lutra)名詞word usually written using kana alone2Japanese river otter (Lutra lutra whiteleyi)名詞word usually written using kana alone札へ残す語をコピー