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Rainbow vs. Spectrum

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Main Difference

The main difference between Rainbow and Spectrum is that the Rainbow is a meteorological phenomenon caused by reflection, refraction and dispersion of light in water droplets and Spectrum is a continuous range of values, such as wavelengths in physics

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Wikipedia
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  • 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.

    "a rainbow of possibilities"

  • Rainbow (noun)

    An illusion, mirage.

    "Many electoral promises are rainbows, vanishing soon after poll day."

  • 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 (noun)

    Rainbow trout.

  • Rainbow (adjective)

    Multicolored.

  • 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.

  • Rainbow (verb)

    To rainbow; to pattern with the colours of the rainbow.

  • Rainbow (verb)

    To take the rainbow.

  • Spectrum (noun)

    A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes.

  • Spectrum (noun)

    Specifically, a range of frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc. from later 17th c.

  • Spectrum (noun)

    The autism spectrum.

  • Spectrum (noun)

    The pattern of absorption or emission of radiation produced by a substance when subjected to energy (radiation, heat, electricity, etc.).

  • Spectrum (noun)

    The set of eigenvalues of a matrix.

  • Spectrum (noun)

    Of a bounded linear operator A, the set of scalar values λ such that the operator A—λI, where I denotes the identity operator, does not have a bounded inverse; intended as a generalisation of the linear algebra sense.

  • Spectrum (noun)

    The set, denoted Spec(R), of all prime ideals of a given ring R, commonly augmented with a Zariski topology and considered as a topological space.

    "Stone space"

  • Spectrum (noun)

    Specter, apparition. from early 17th c.

  • Spectrum (noun)

    The image of something seen that persists after the eyes are closed.

Wiktionary
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  • Rainbow (noun)

    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.

  • Spectrum (noun)

    An apparition; a specter.

  • Spectrum (noun)

    The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and observed or studied either as spread out on a screen, by direct vision, by photography, or otherwise. See Illust. of Light, and Spectroscope.

Webster Dictionary
  • Rainbow (noun)

    an arc of colored light in the sky caused by refraction of the sun's rays by rain

  • Rainbow (noun)

    an illusory hope;

    "chasing rainbows"

  • Spectrum (noun)

    an ordered array of the components of an emission or wave

  • Spectrum (noun)

    broad range of related values or qualities or ideas or activities

Princeton's WordNet

Rainbow Illustrations

Spectrum Illustrations

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