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ALL meanings of nightglow

night·glow
N n
  • noun nightglow a dim light from the upper atmosphere caused by emissions from atoms and molecules ionized by solar radiation: observed at night (nightglow) during the day (dayglow) and at twilight (twilight glow) with each having slightly different characteristics. 1
  • noun nightglow a faint light from the upper atmosphere seen in the night sky, esp in low latitudes 0
  • noun nightglow airglow occurring during the night 0
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