Absorption band


a dark band in the absorption spectrum of a substance, corresponding to a range of wavelengths for which the substance absorbs more strongly than at adjacent wavelengths.
Historical Examples

Where the curve is highest there the absorption band is thickest; where the curve is lowest there the band is weak.
Poisons: Their Effects and Detection Alexander Wynter Blyth

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  • Absorption coefficient

    a measure of the rate of decrease in the intensity of electromagnetic radiation, as light, as it passes through a given substance. absorption coefficient n. The milliliters of a gas at standard temperature and pressure that will saturate 100 milliters of liquid. The amount of light absorbed in 1 atom or in 1 unit of […]

  • Absorption costing

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    a discontinuity in the graph of the absorption coefficient of a substance plotted against the wavelength of x-rays being absorbed, representing the minimum energy necessary to free electrons from particular shells of the atoms of the substance.

  • Absorption dynamometer

    a device for measuring the torque or power of an engine in a process in which the energy supplied to the device by the engine is absorbed.


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