- The definition of a rainbow is an arch in the sky made up of different colors that forms when the sun's rays are refracted by rain drops, or any display of different colors formed by the spectrum of light, or any display of vibrant or colorful things.
- When a rainy day clears up and the sun's rays catch on water drops in the atmosphere and form a red, orange, yellow, green, blue, indigo and violet arch, this is an example of a rainbow.
- A produce aisle at the grocery store with many different colored fruits and vegetables is an example of a rainbow of colors.
A beautiful rainbow.
- an arc or ring containing the colors of the spectrum in consecutive bands, formed in the sky by the refraction, reflection, and dispersion of light in rain or fog
- a multicolored array or assortment
- a wide range or selection
Origin of rainbowMiddle English reinbowe ; from Old English regnboga: see rain and amp; bow
- of many colors
- of or involving the collaboration of members of diverse groups, esp. racial or minority groups: a rainbow commission to study housing
- designating a political coalition of diverse racial or minority groups
- a. An arc of spectral colors, usually identified as red, orange, yellow, green, blue, indigo, and violet, that appears in the sky opposite the sun as a result of the refractive dispersion of sunlight in drops of rain or mist.b. A similar arc or band, as one produced by a prism or by iridescence.c. A graded display of colors.
- An illusory hope: chasing the rainbow of overnight success.
- A diverse assortment or collection.
Origin of rainbowMiddle English, from Old English rēnboga : rēn, rain + boga, bow; see bow3.
- A multicoloured arch in the sky, produced by prismatic refraction of light within droplets of rain in the air.
- Any prismatic refraction of light showing a spectrum of colours.
- (often used with “of”) A wide assortment; a varied multitude.
- a rainbow of possibilities
- An illusion, mirage
- Many electoral promises are rainbows, vanishing soon after poll day.
- (baseball) A curveball, particularly a slow one
- (poker slang) In Texas hold 'em or Omaha hold 'em, a flop that contains three different suits
In the United States, 'rainbow' groups/families/alliances/coalitions were originally those made up of several races or ethnicities. The term is now used more broadly, to refer (in the 2007 quotation, for example) to an alliance of several political parties.
(third-person singular simple present rainbows, present participle rainbowing, simple past and past participle rainbowed)
- To pattern with many colours, like a rainbow.
From Middle English reinbowe, reinboȝe, from Old English reġnboga (“rainbow”), from Proto-Germanic *regnabugô (“rainbow”), equivalent to rain + bow (“arch”). Cognate with West Frisian reinbôge (“rainbow”), Dutch regenboog (“rainbow”), German Regenbogen (“rainbow”), Danish regnbue (“rainbow”), Swedish regnbåge (“rainbow”), Icelandic regnbogi (“rainbow”).
- A member of the Rainbow Guides, a Girl Guide movement for younger girls.
rainbow - Computer Definition
Digital Equipment's original offering in the PC market. The Rainbow, released between 1982 and 1986, used an Intel 8088 to run MS/DOS, but could also run CP/M programs because its Z80 keyboard processor served as an alternate CPU. The Rainbow was not hardware-compatible with the IBM PC.