1A small and faint southern constellation (the Dove), near Canis Major. It is sometimes said to represent the dove that Noah sent out from the Ark.

1. 1.1as genitive Columbae /kəˈlʌmbi, kəˈlʌmbʌɪ/ Used with preceding letter or numeral to designate a star in the constellation Columba.
   与其前面的字母或数字连用以标记该星座中的星天鸽星座的
   the star Beta Columbae

   天鸽座β星。