1A large southern constellation (the Centaur). It lies in the Milky Way and contains the stars Alpha and Proxima Centauri.

1. 1.1as genitive Centauri /sɛnˈtɔːri/ Used with preceding letter or numeral to designate a star in the constellation Centaurus.
   与其前面的字母或数字连用以标记该星座中的星半人马星座的
   the star Lambda Centauri

   半人马座λ星。