aurora
au-ro-ra · noun
Definitions
noun
- 1.
A natural light display in the Earth's sky, predominantly seen in high-latitude regions, caused by charged particles from the sun interacting with the atmosphere.
- 2.
(Poetic/literary) The dawn; daybreak.
Forms
plural: auroras
Phrases & expressions
- •aurora borealis — The northern lights, visible in Arctic regions.
- •aurora australis — The southern lights, visible in Antarctic regions.
Related words
Etymology
From Latin Aurora, the Roman goddess of the dawn, from Proto-Indo-European root h₂ews- ("to shine").