absorption spectrum
noun Date: 1869 an electromagnetic spectrum in which a decrease in intensity of radiation at specific wavelengths or ranges of wavelengths characteristic of an absorbing substance is manifested especially as a pattern of dark lines or bands

New Collegiate Dictionary. 2001.

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  • 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

  • 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 — 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 spectrum — sugerties spektras statusas T sritis fizika atitikmenys: angl. absorption spectrum; darkline spectrum vok. Absorptionsspektrum, n rus. спектр поглощения, m pranc. spectre d’absorption, m …   Fizikos terminų žodynas

  • absorption spectrum — absorbcijos spektras statusas T sritis chemija apibrėžtis Per tiriamą medžiagą praėjusios spinduliuotės sugėrimo intensyvumo priklausomybė (ppr. grafinė) nuo bangos ilgio ar dažnio. atitikmenys: angl. absorption spectrum; darkline rus. спектр… …   Chemijos terminų aiškinamasis žodynas

  • absorption spectrum — Spectrum of wavelengths of electromagnetic radiation (usually visible and UV light) absorbed by substance. Absorption is determined by existence of atoms that can be excited from their ground state to an excited state by absorption of energy… …   Dictionary of molecular biology

  • absorption spectrum — /əbˈsɔpʃən ˌspɛktrəm/ (say uhb sawpshuhn .spektruhm) noun the spectrum observed when light or other electromagnetic radiation is passed through an unexcited gas and examined with a spectroscope. See emission spectrum …   Australian English dictionary

  • absorption spectrum — noun the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths (Freq. 1) • Hypernyms: ↑spectrum …   Useful english dictionary

  • absorption spectrum — Physics. the spectrum formed by electromagnetic radiation that has passed through a medium in which radiation of certain frequencies is absorbed. [1875 80] * * * …   Universalium

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