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Dictionary Meaning and Definition on 'Rainbow'

Rainbow Meaning and Definition from WordNet (r) 2.0
    rainbow n
  1. an arc of colored light in the sky caused by refraction of the sun's rays by rain
  2. an illusory hope; "chasing rainbows"
Rainbow Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Rainbow \Rain"bow`\, n. [AS. regenboga, akin to G. regenbogen. See Rain, and Bow anything bent,] 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. Note: Besides the ordinary bow, called also primary rainbow, which is formed by two refractions and one reflection, there is also another often seen exterior to it, called the secondary rainbow, concentric with the first, and separated from it by a small interval. It is formed by two refractions and two reflections, is much fainter than the primary bow, and has its colors arranged in the reverse order from those of the latter. Lunar rainbow, a fainter arch or rainbow, formed by the moon. Marine rainbow, or Sea bow, a similar bow seen in the spray of waves at sea. Rainbow trout (Zo["o]l.), a bright-colored trout (Salmoirideus), native of the mountains of California, but now extensively introduced into the Eastern States. Japan, and other countries; -- called also brook trout, mountain trout, and golden trout. Rainbow wrasse. (Zo["o]l.) See under Wrasse. Supernumerary rainbow, a smaller bow, usually of red and green colors only, sometimes seen within the primary or without the secondary rainbow, and in contact with them.
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Wikipedia Meaning and Definition on 'Rainbow'

A rainbow is an optical and meteorological phenomenon that causes a spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth's atmosphere. They take the form of a multicoloured arc, with red on the outer part of the arc and violet on the inner section of the arc.

A rainbow spans a continuous spectrum of colours; the distinct bands are an artifact of human colour vision. The most commonly cited and remembered sequence, in English, is Newton's sevenfold red, orange, yellow, green, blue, indigo and violet (popularly memorized by mnemonics like Roy G. Biv). Rainbows can be caused by other forms of water than rain, including mist, spray, and dew.

Rainbows can be observed whenever there are water drops in the air and sunlight shining from behind at a low altitude angle. The most spectacular rainbow displays happen when half of the sky is still dark with raining clouds and the observer is at a spot with clear sky in the direction of the Sun. The result is a luminous rainbow that contrasts with the darkened background.

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Words and phrases related to 'Rainbow'

'Rainbow' in famous quotation sentence

* The true harvest of my daily life is somewhat as intangible And indescribably as the tints of morning or evening. It is a little star-dust caught, A segment of the rainbow which I have clutched. - Henry David Thoreau

* No vision and you perish No Ideal, and you're lost Your heart must ever cherish Some faith at any cost. Some hope, some dream to cling to, Some rainbow in the sky, Some melody to sing to, Some service that is high. - Harriet Du Autermont

* May the sun always shine on your windowpane May a rainbow be certain to follow each rain May the hand of a friend always be near you May God fill your heart with gladness to cheer you. - Blessing Irish

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Rainbow Sample Sentences in News

  • Helping Rainbow Springs: Plan targets pollutants
    A preliminary plan by Florida water regulators to reduce the amount of nitrogen that seeps into Rainbow Springs notes that efforts will fall short of state-mandated goals — at least in the foreseeable future. Read more on this news related to 'Rainbow'
  • Petition to rename Waldo Tunnel after Robin Williams
    Rather than memorializing a 19th century nobody, the Waldo Tunnel and its rainbow arches north of the Golden Gate Bridge ought to honor actor and comedian Robin Williams, who became famous while wearing rainbow suspenders. That's the wish of thousands of people who by Tuesday - eight days after Williams' apparent suicide at his Tiburon home - had electroni Read more on this news related to 'Rainbow'
  • Rainbow International® and Next Gear Solutions Sign Master Service Agreement
    Rainbow International, a subsidiary of The Dwyer Group, and Next Gear Solutions have entered into a master service agreement to implement Next Gear's DASH management technology at over 300 Rainbow International franchisee service providers. (PRWeb August 19, 2014) Read the full story at http://www.prweb.com/releases/2014/08/prweb12105112.htm Read more on this news related to 'Rainbow'

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