Definition of rainbow Rainbow
/ɹejˈnbowˌ/ - [reynbow] - rain•bow
We found 19 definitions of rainbow from 8 different sources.
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What does rainbow mean?
WordNet
Wiktionary 
- rainbow (Noun)
A multicoloured arch in the sky, produced by prismatic refraction of light within droplets of rain in the air. - rainbow (Noun)
Any prismatic refraction of light showing a spectrum of colours. - rainbow (Noun)
A wide assortment; a varied multitude. - rainbow (Noun)
An illusion, mirage. - rainbow (Noun)
A curveball, particularly a slow one. - rainbow (Noun)
In Texas hold 'em or Omaha hold 'em , a flop that contains three different suits. - rainbow (Verb)
To pattern with many colours, like a rainbow. - rainbow (Adjective)
Multicoloured. - rainbow (Adjective)
Made up of several races or ethnicities, or more broadly of several cultural or ideological factions. - rainbow (Adjective)
LGBT. - rainbow (Adjective)
Composed entirely of different suits.
Webster DictionaryWebster's Unabridged Dictionary 📘
- rainbow (n.)
A bow or arch exhibiting, in concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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rainbow
A multicoloured arc in the sky caused by the refraction of light within droplets of rain in the air.
Sailor's Word-BookThe Sailor's Word-Book ⛵
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rainbow
"A rainbow towards night, Fair weather in sight. Rainbow at night, Sailor's delight; Rainbow in morning, Sailors, take warning."
Vulgar Tongue DictionaryDictionary of the Vulgar Tongue 👅
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rainbow
Knight of the rainbow; a footman: from being commonly clothed in garments of different colours. A meeting of gentlemen, styled of the most ancient order of the rainbow, was advertised to be held at the Foppington's Head, Moorfields.
Wikipedia 
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A rainbow is an arc of color in the sky that you can see when the sun shines through falling rain. The pattern of colors starts with red on the outside and changes through orange, yellow, green, blue, indigo to violet on the inside.
A rainbow is actually round. On the ground, the bottom part is hidden, but in the sky, like from the view of a flying airplane, it can be seen as a round shape.
Rainbows are popular symbols, they usually mean peace and harmony. In the bible, it says God made a rainbow, after he flooded out evil from the world, a promise to never harm the Earth like that again.
Cause.
An unnatural rainbow effect can also be made to come into existence by putting drops of water into the air when there is a sunny day. Rainbows are also called Stephanie and Jamie effect. This is because two girls confronted Issac Newton about the phenomena in the sky.
The seven colors of the rainbow.
Note: The spectrum colors can only be approximated on a computer screen but the colors shown below are a close approximation of the spectrum colors of the rainbow.
Part of speech
🔤- rainbow, noun, singular of rainbows.
- rainbow, adjective, not comparable.
Pronunciation
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