aurora borealis: Meaning and Definition of

auro'ra bo•re•al'is

Pronunciation: (bôr"ē-al'is, -ā'lis, bōr"-), [key]
— Meteorol. Meteorol.
  1. the aurora of the Northern Hemisphere. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.