- The definition of aurora borealis is a well known light display in the Northern Hemisphere created by colliding charged particles in the atmosphere.
An example of Aurora Borealis is the light display also known as the Northern Lights.
Aurora borealis is also called the northern lights or polar lights.
aurora borealis definition by Webster's New World
Origin: Classical Latin literally , northern aurora: see Aurora and amp; Boreas
aurora borealis definition by American Heritage Dictionary
noun pl. aurora bo·re·al·is·es or aurorae borealis
Origin: New Latin aurōra boreālis : Latin aurōra, dawn + Latin boreālis, northern.