owned by or resembling the aurora the dawn or perhaps the north lights rosy
- of or regarding the atmospheric sensation auroras
- characteristic regarding the dawn
- Belonging to, or resembling, the aurora (the dawn or perhaps the north lights); rosy.
1550s, "pertaining to dawn," from aurora + -al (1). Meaning "of this color of dawn" is from 1827; "of the aurora" from 1828.
(a.) Belonging to, or resembling, the aurora (the dawn and/or northern lights); rosy.
Out of a total of 146 auroral lines, with wave-lengths longer than 3684 tenth-metres, Westman identifies 82 with oxygen or nitrogen lines at the negative pole in vacuum discharges.