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  1. Oxford Dictionary

    spectrum

    • IPA[ˈspɛktrəm]

    英式

    • n.
      a band of colours, 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: spectrum, plural noun: spectra

    • 釋義
    • 片語

    名詞

    • 1. a band of colours, 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.
    • ▪ a characteristic series of frequencies of electromagnetic radiation emitted or absorbed by a substance.
    • ▪ the components of a sound or other phenomenon arranged according to such characteristics as frequency, charge, and energy.
    • 2. used to classify something in terms of its position on a scale between two extreme points the left or the right of the political spectrum
    • ▪ a wide range self-help books are covering a broader and broader spectrum

    片語