1A southern constellation (the Toucan), south of Grus and Phoenix. It contains the Small Magellanic Cloud.

1. 1.1as genitive Tucanae /t(y)o͞oˈkānē, -ˈkanē/ Used with preceding letter or numeral to designate a star in the constellation Tucana.
   与其前面的字母或数字连用以标记该星座中的星杜鹃星座的
   the star Delta Tucanae

   杜鹃座δ星。