aurora australis
Americannoun
noun
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012Usage
What does aurora australis mean? The aurora australis is the shimmering display of lights that sometimes appears in Earth’s Southern Hemisphere.The phenomenon is also called the southern lights. An aurora is a natural light display in the sky that is caused by particles from the sun interacting with Earth’s magnetic field. The word australis is Latin for austral, which simply means “southern.” The aurora australis appears in many colors ranging from green and pink to red, yellow, and blue.Auroras are not exclusive to Earth and occur on every planet in our solar system except Mercury. And the aurora australis is not the only aurora on Earth. The more commonly known aurora in the Northern Hemisphere is called aurora borealis or the northern lights (the word borealis is Latin for boreal, which simply means “northern”). Both the northern and southern versions can be called aurora polaris because they occur around Earth’s poles, but this term is not commonly used.The aurora australis dazzles the many people who travel to see the natural light show, which is considered one of Earth’s most magical phenomena.
Etymology
Origin of aurora australis
1735–45; < New Latin: southern aurora; austral 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
These eruptions can cause geomagnetic storms on Earth, which are what create displays of aurora borealis or the Northern Lights, as well as aurora australis in the Southern Hemisphere.
From BBC
When winds were bearable, we sought bliss, sat, admired the aurora australis as an escape from our blackest abyss.
From Scientific American
No matter how many times you see them, the northern lights, or aurora borealis—and their Southern Hemisphere equivalent, the aurora australis—are an ethereal, breathtaking sight.
From National Geographic
In the southern hemisphere, aurora australis, or the southern lights, are typically visible from Antarctica, Australia and south of Argentina.
From New York Times
Many nights, the dog teams set up a wolf pack howl, sending their lonesome cries up toward an aurora australis that was bright enough to cast shadows on the endless field of ice.
From Literature
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.