noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A bow or arc of prismatic colors like a rainbow, caused by refraction through a spray of water from a cataract, waterfall, fountain, etc., rather than through droplets of rain.

Example

More examples

"As the sunlight shone through the mist of the waterfall, a beautiful sunbow appeared in the sky."

Etymology

From sun + bow. Compare rainbow.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.