1A small southern constellation (the Crane), south of Piscis Austrinus.

1. 1.1as genitive Gruis /ˈɡro͞ois/ Used with preceding letter or numeral to designate a star in the Grus constellation.
   与其前面的字母或数字连用以标记该星座中的星天鹤星座的
   the star Delta Gruis

   天鹤座δ星。