01 a. Southern; lying or being in the south; as, austral land; austral ocean.
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1.
Southern; lying or being in the south; as, austral land; austral ocean.
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2.
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.(Biogeography)
Phrases & compounds
Austral signs —
the last six signs of the zodiac, or those south of the equator.