コタール症しょう候こう群ぐんMeanings1nounCotard's syndrome; Cotard's delusionmedicine›A rare psychiatric condition in which a person believes they are dead, do not exist, or have lost their internal organs or blood.コタール症しょう候こう群ぐんの患かん者じゃは、自じ分ぶんはすでに死しんでいると思おもい込こむことがある。Patients with Cotard's syndrome may believe that they are already dead.