sunbow
/ˈsʌnˌboʊ/
noun
- A rainbow-like arc of colors seen in mist or spray illuminated by sunlight, similar to a rainbow but formed by sunlight rather than rain.
- We saw a beautiful sunbow in the spray of the waterfall.
- The morning mist created a faint sunbow over the lake.
- Photographers often try to capture a sunbow in the ocean surf.