Definition of Triangulum Australe in English:
 Triangulum Australe
proper nounɒˈstrɑːlitrīˌaNGɡyələm ôˈstrālē
Astronomy 1A small southern constellation (the Southern Triangle), lying in the Milky Way near the south celestial pole.
- 1.1as genitive Trianguli Australis /ɒˈstreɪlɪs/ Used with preceding letter or numeral to designate a star in the constellation Triangulum Australe.
 the star Alpha Trianguli Australis
 
  Definition of Triangulum Australe in US English:
 Triangulum Australe
proper nountrīˌaNGɡyələm ôˈstrālē
Astronomy 1A small southern constellation (the Southern Triangle), lying in the Milky Way near the south celestial pole.
- 1.1as genitive Trianguli Australis /trīˈaNGɡyəlē ôˈstrālis, trīˈaNGɡyəˌlī/ Used with preceding letter or numeral to designate a star in the constellation Triangulum Australe.
 the star Alpha Trianguli Australis