a large southern constellation (the Centaur). It lies in the Milky Way and contains the stars Alpha and Proxima Centauri (天文)半人马星座,人马星座 ■[as genitive Centauri sɛnˈtɔːri]used with preceding letter or numeral to designate a star in this constellation [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。