a band of colors, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.
the entire range of wavelengths of electromagnetic radiation.
noun: the spectrum
an image or distribution of components of any electromagnetic radiation arranged in a progressive series according to wavelength.
an image or distribution of components of sound, particles, etc., arranged according to such characteristics as frequency, charge, and energy.
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Filter definitions by topidegrees of refraction according to wavelength.
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