absorption spectrum


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absorption spectrum

n.
The electromagnetic spectrum, broken by a specific pattern of dark lines or bands, observed when radiation traverses a particular absorbing medium and through a spectroscope. The absorption pattern of an element is unique and can be used to identify the substance of the medium.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

absorption spectrum

n
(General Physics) the characteristic pattern of dark lines or bands that occurs when electromagnetic radiation is passed through an absorbing medium into a spectroscope. An equivalent pattern occurs as coloured lines or bands in the emission spectrum of that medium
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

absorp′tion spec`trum


n.
the spectrum formed by electromagnetic radiation that has passed through a medium in which radiation of certain frequencies is absorbed.
[1875–80]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

absorption spectrum

The pattern of dark lines and colors made when light passes through an absorbing medium, such as a gas or liquid. The dark lines represent the colors that are absorbed. Because each type of atom absorbs a unique range of colors, the absorption spectrum can be used to identify the composition of distant substances, such as the gaseous outer layers of stars.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.absorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengthsabsorption spectrum - the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
spectrum - an ordered array of the components of an emission or wave
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Todorov); International Business Machines Corporation has patented a method that entails selecting a combination of multiple organic materials to incorporate into a sunscreen composition, wherein selection is based, at least in part on: a desired absorption spectrum of the sunscreen composition; the absorption spectrum of each of the multiple organic materials, and; a particle size limitation for each of the multiple organic materials.
The oscillation strength shows the type of spectrum is absorption spectrum for all complexes and in both in magnetized and non-magnetized water.
What is not as common--and more difficult to do--is measure the absorption spectrum of a single molecule.
Gemological properties including external observation with 10x loupe, hardness, internal observation, specific gravity, polariscopic study, pleochroism, absorption spectrum, ultraviolet light, Chelsea colour filter and refractive index were also determined.
1, the intermediate structure consisting of an absorber-emitter pair, which is the key component for the solar thermal photovoltaic technology, is specifically designed to have spectral selectivity: the absorber's absorption spectrum should cover the entire solar spectrum, while the long-wavelength radiation should also be suppressed to reduce the system's radiation loss; the emitter's radiation spectrum should be higher (but could not be too much higher) than the bandgap wavelength (to avoid extra thermalization loss).
The absorption spectrum of the Industrial GFs in this study was quite like that of the StickNET GFs, which indicates towards the presence of a layer of silane coupling agent over the GFs.
The absorption spectrum of nonalgal particles for each sample was modeled from 380 to 600 nm with an exponential function using the least-squares method, and the absorption slope (S) of 40 samples was derived [33, 34]:
UV-Vis absorption spectrum was performed on a Shimadzu UV/Vis-2450 spectrometer.
Bartkowiak, "Two-photon solvatochromism III: experimental study of the solvent effects on two-photon absorption spectrum of p-nitroaniline," Dyes and Pigments, vol.
Numerous research studies showed that the absorption spectrum changed when the small molecule interacted with DNA and formed a new complex [32].
Furthermore, to investigate the molecular behavior of the additive in each formulation, the near-infrared (NIR) absorption spectrum was measured.
From the presented IR absorption spectrum Figure 1, the values of absorbance Ax have been determined for all the separated absorption maxima and shoulders using the OMNIC software subtracting automatically the base line.