absorption lines

absorption bands or absorption lines plural noun
Dark bands or lines interrupting a spectrum, due to absorption of light in the medium traversed
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Main Entry:absorb

Useful english dictionary. 2012.

Look at other dictionaries:

  • absorption lines — Dark lines in a continuous spectrum caused by absorption by a gaseous element. The positions (i.e., wavelengths) of the dark absorption lines are identical to those of the bright lines given by the same element in emission …   Dictionary of automotive terms

  • absorption lines — dark lines in the spectrum due to absorption of light by the substance (usually an incandescent gas or vapor) through which the light has passed. Cf. absorption bands …   Medical dictionary

  • absorption bands — or absorption lines plural noun Dark bands or lines interrupting a spectrum, due to absorption of light in the medium traversed • • • Main Entry: ↑absorb …   Useful english dictionary

  • Absorption spectroscopy — An overview of electromagnetic radiation absorption. This example discusses the general principle using visible light as a specific example. A white beam source – emitting light of multiple wavelengths – is focused on a sample (the complementary… …   Wikipedia

  • Absorption spectrum — A material s absorption spectrum shows the fraction of incident electromagnetic radiation absorbed by the material over a range of frequencies. An absorption spectrum is, in a sense, the opposite of an emission spectrum.Every chemical element has …   Wikipedia

  • absorption line — noun : a dark line in the absorption spectrum of a gas or a vapor * * * absorption line, a dark line in a continuous spectrum of white light caused by the natural or artificial absorption of the wavelengths of light radiating from the atoms of a… …   Useful english dictionary

  • absorption bands — dark bands in the spectrum due to absorption of light by the medium (a solid, a liquid, or a gas) through which the light has passed. Cf. absorption lines, under line …   Medical dictionary

  • absorption spectrum — n an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance (as chlorophyll) is manifested esp. as a pattern of dark lines or bands compare… …   Medical dictionary

  • absorption spectrum — n. a spectrum with a pattern of dark bands or lines created when light passes through a gas or liquid into a spectroscope: the chemical elements of the gas or liquid absorb specific wavelengths of light creating a unique pattern which can be used …   English World dictionary

  • Absorption spectrum — Spectrum Spec trum, n.; pl. {Spectra}. [L. See {Specter}.] 1. An apparition; a specter. [Obs.] [1913 Webster] 2. (Opt.) (a) The several colored and other rays of which light is composed, separated by the refraction of a prism or other means, and… …   The Collaborative International Dictionary of English

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