アカガレイあかがれいMeanings1nounflathead flounder (Hippoglossoides dubius)usually written using kana aloneA species of righteye flounder found in the northwestern Pacific. The name is usually written in katakana.アカガレイは北ほっ海かい道どうや東とう北ほくの海うみでよく獲とれる。Flathead flounder are often caught in the seas off Hokkaido and Tohoku.