aurora

UK: /ɔːˈrɔːrə/

US: /əˈrɔrə/

US: (ô rôr′ə, ô rōr′ə, ə rôr′ə, ə rōr′ə)

WordReference Random House Learner's Dictionary of American English © 2025

au•ro•ra /əˈrɔrə/   n. [countable] , pl. au•ro•ras, au•ro•rae /əˈrɔri/.  

1. dawn.
2. Meteorology bands of colored light in the upper atmosphere, visible at night in polar areas.

Collins Concise English Dictionary © HarperCollins Publishers::

aurora / ɔːˈrɔːrə/ noun ( -ras, -rae / -riː/)

1. an atmospheric phenomenon consisting of bands, curtains, or streamers of light, usually green, red, or yellow, that move across the sky in polar regions. It is caused by collisions between air molecules and charged particles from the sun that are trapped in the earth's magnetic field
2. the dawn

Etymology: 14th Century: from Latin: dawn; see east

auˈroral adjective

WordReference Random House Unabridged Dictionary of American English © 2025

Au•ro•ra  (ô rôr′ə, ô rōr′ə, ə rôr′ə, ə rōr′ə), n. 

1. Mythology the ancient Roman goddess of the dawn. Cf. Eos.
2. (l.c.) dawn.
3. Meteorology (l.c.) a radiant emission from the upper atmosphere that occurs sporadically over the middle and high latitudes of both hemispheres in the form of luminous bands, streamers, or the like, caused by the bombardment of the atmosphere with charged solar particles that are being guided along the earth's magnetic lines of force.
4. Place Names a city in central Colorado, near Denver. 158,588.
5. Place Names a city in NE Illinois. 81,293.
6. a female given name.

• Latin aurōra dawn, dawn goddess, east
• Middle English 1350–1400

Collins Concise English Dictionary © HarperCollins Publishers::

Aurora / ɔːˈrɔːrə/ noun

1. the Roman goddess of the dawn
   Greek counterpart: Eos
2. the dawn or rise of something

Aurora / ɔːˈrɔːrə/ noun

1. another name for Maewo