死し兆ちょう星せいMeanings1nounStar of Death; Alcor (nickname)astronomy›Nickname for the star Alcor in the Big Dipper, used in astronomy and popular culture. Not a common everyday word.See also: アルコル北ほく斗と七しち星せいのそばにある死し兆ちょう星せいは、正せい式しきにはアルコルと呼よばれる。The Star of Death near the Big Dipper is officially called Alcor.