1A small constellation (the Dolphin), just north of the celestial equator near Cygnus.

1. 1.1as genitive Delphini /dɛlˈfʌɪni/ Used with preceding letter or numeral to designate a star in the constellation Delphinus.
   与其前面的字母或数字连用以标记该星座中的星海豚（星）座的
   the star Alpha Delphini

   海豚星座α星。