| 释义 |
au·ro·ra
\əˈrōrə, ȯˈ-, -rȯrə\ noun
(plural auroras ; see senses 1 & 2)
Etymology: Latin — more at east
1. or plural auro·rae \-(ˌ)rē\ : the rising light of the morning : the dawn of day : the redness of the sky just before the sun rises
2. or plural aurorae : a luminous phenomenon that consists of streamers or arches of light appearing in the upper atmosphere of a planet's polar regions and is caused by the emission of light from atoms excited by electrons accelerated along the planet's magnetic field lines
3. or aurora orange : a moderate reddish orange that is redder and paler than flamingo, crab apple, or burnt ocher — called also orange aurora |