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auroral aurogauge auriscope auricular valve auralize

auroral
[ɔ:ˈrɔ:rəl] 生词本

adj.

Adjective

1. of or relating to the atmospheric phenomenon auroras;

  • "a prominent green line in the spectrum of the auroras is called the `auroral line'"

2. characteristic of the dawn;

  • "a dim auroral glow"