fogbows
/ˈfɑɡˌboʊz/
noun
- A white or faintly colored arc in fog, similar to a rainbow but formed by fog droplets instead of rain.
- Unlike rainbows, fogbows have very pale colors and sometimes appear completely white.
- Fogbows are often visible from airplanes flying above a layer of fog.
- We saw a beautiful fogbow over the misty valley this morning.