flatfish

noun

any of several families of fishes having flattened bodies that swim along the sea floor on one side of the body with both eyes on the upper side
両目は上側にあり、体の片方を下にして海底に沿って泳ぐ平らな体の魚類の数種の科各種
sweet lean whitish flesh of any of numerous thin-bodied fish
多数の細い体を持った魚の甘く脂肪の少ない白っぽい肉

usually served as thin fillets
薄いフィレとして供される