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