AURORAL

auroral, aurorean

(adjective) characteristic of the dawn; “a dim auroral glow”

auroral

(adjective) of or relating to the atmospheric phenomenon auroras; “a prominent green line in the spectrum of the auroras is called the ‘auroral line’”

Source: WordNet® 3.1

Etymology

Adjective

auroral (comparative more auroral, superlative most auroral)

Pertaining to the dawn; dawning, eastern, like a new beginning.

Synonym: aurorean

Rosy in colour.

Synonyms: blushing, roseate

Pertaining to the aurora borealis or aurora australis.

Source: Wiktionary

Au*ro"ral, a.

Definition: Belonging to, or resembling, the aurora (the dawn or the northern lights); rosy. Her cheeks suffused with an auroral blush. Longfellow.

Source: Webster’s Unabridged Dictionary 1913 Edition