| 单词 | aurora | 
| 释义 | auroranoun  au·ro·ra  ə-ˈrȯr-ə  ȯ-    plural auroras or aurorae ə-ˈrȯr-(ˌ)ē  ȯ- 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    auroral   ə-ˈrȯr-əl adjective ȯ-  aurorean   ə-ˈrȯr-ē-ən adjective ȯ- aurora nounas in sunrisethe first appearance of light in the morning or the time of its appearance a gorgeous pink aurora aroused us out of our slumber Synonyms & Similar Words Relevance 
 Antonyms & Near Antonyms 
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