Auroral
[ɒ:'rɒ:rәl]
Definition
(adj.) characteristic of the dawn; 'a dim auroral glow' .
(adj.) of or relating to the atmospheric phenomenon auroras; 'a prominent green line in the spectrum of the auroras is called the `auroral line'' .
Edited by Glenn--From WordNet
Definition
(a.) Belonging to, or resembling, the aurora (the dawn or the northern lights); rosy.
Checked by Klaus