Spectral



adjective
1.
of or relating to a specter; ghostly; phantom.
2.
resembling or suggesting a specter.
3.
of, relating to, or produced by a spectrum or spectra.
4.
resembling or suggesting a spectrum or spectra.
adjective
1.
of or like a spectre
2.
of or relating to a spectrum: spectral colours
3.
(physics) (of a physical quantity) relating to a single wavelength of radiation: spectral luminous efficiency

spectral spec·tral (spěk’trəl)
adj.
Of, relating to, or produced by a spectrum.
spec·tral’i·ty (-trāl’ĭ-tē) or spec’tral·ness (-trəl-nĭs) n.

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  • Spectrality

    adjective 1. of or relating to a specter; ghostly; phantom. 2. resembling or suggesting a specter. 3. of, relating to, or produced by a spectrum or spectra. 4. resembling or suggesting a spectrum or spectra. adjective 1. of or like a spectre 2. of or relating to a spectrum: spectral colours 3. (physics) (of a […]



  • Spectral-line

    noun, Optics. 1. a line in a spectrum due to the absorption or emission of light at a discrete frequency. spectral line (spěk’trəl) An isolated bright or dark line in a spectrograph produced by emission or absorption of light of a single wavelength, generally corresponding to a specific shift in the energy of an electron […]

  • Spectral luminous efficiency

    noun 1. a measure of the efficiency of radiation of a given wavelength in producing a visual sensation. It is equal to the ratio of the radiant flux at a standard wavelength to that at the given wavelength when the standard wavelength is chosen so that the maximum value of this ratio is unity ((for […]



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