Definition of aurora
auroras
oraurorae
play \-(ˌ)ē\1 : dawn
2 capitalized : the Roman goddess of dawn — compare eos
3 : a luminous phenomenon that consists of streamers or arches of light appearing in the upper atmosphere of a planet's magnetic polar regions and is caused by the emission of light from atoms excited by electrons accelerated along the planet's magnetic field lines
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Examples of aurora in a sentence
a gorgeous pink aurora aroused us out of our slumber
Origin and Etymology of aurora
Latin — more at east
First Known Use: 14th century
Aurora
playDefinition of Aurora
1 city in north central Colorado east of Denver population 325,078
2 city west of Chicago in northeastern Illinois population 197,899
3 town north of Toronto in southeastern Ontario, Canada population 53,203
AURORA Defined for English Language Learners
Aurora
playDefinition of Aurora for English Language Learners
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: U.S. city, Colorado
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: U.S. city, Illinois
Learn More about aurora
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See words that rhyme with aurora Thesaurus: All synonyms and antonyms for aurora Spanish Central: Translation of aurora Britannica.com: Encyclopedia article about aurora
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