noun
[ pl. ] (also aur·ora aus·tra·lis ) bands of coloured light that are sometimes seen in the sky at night in the most southern countries of the world
noun
[ pl. ] (also aur·ora aus·tra·lis ) bands of coloured light that are sometimes seen in the sky at night in the most southern countries of the world
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005