aus·tral /ˈɔstrəl, ˈɑs-/
1. Southern; lying or being in the south; as, austral land; austral ocean.
2. Biogeography Designating, or pertaining to, a zone extending across North America between the Transition and Tropical zones, and including most of the United States and central Mexico except the mountainous parts.
Austral signs Astron., the last six signs of the zodiac, or those south of the equator.
adj 1: relating to or coming from the south; "austral winds"
2: of the south or coming from the south; "sailed the austral
n : the basic unit of money in Argentina; equal to 100 centavos