[ suhn-boh ]

  1. a bow or arc of prismatic colors like a rainbow, appearing in the spray of cataracts, waterfalls, fountains, etc.

Origin of sunbow

First recorded in 1810–20; sun + bow2

Words Nearby sunbow Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use sunbow in a sentence

British Dictionary definitions for sunbow


/ (ˈsʌnˌbəʊ) /

  1. a bow of prismatic colours similar to a rainbow, produced when sunlight shines through spray

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for sunbow


[ sŭnbō′ ]

  1. A prismatic arc of colors, similar to a rainbow, resulting from the refraction of sunlight through a mist or spray of water.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.