aurora

aurora
[ɔːˈrɔːrə]
(pl. auroras aurorae -riː)
Latin
  1. a natural electrical phenomenon characterized by the appearance of streamers of reddish or greenish light in the sky, especially near the northern or southern magnetic pole. The effect is caused by the interaction of charged particles from the sun with atoms in the upper atmosphere. In northern and southern regions it is respectively called aurora borealis or northern lights and aurora australis or southern lights
    极光(天空里产生红色或绿色电光的自然现象,常发生在南北两极附近,由来自太阳的带电粒子与地球大气层外层的原子相互作用所致,分别称作北极光和南极光)
  2. [in sing.](poetic/literary)the dawn
    (诗/文)晨曦
派生
auroral
adjective
语源
  1. late Middle English (originally in sense 2): from Latin, dawn, goddess of the dawn'. Sense 1dates from the early 18th cent
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