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absorption spectrum

noun, Physics.
1.
the spectrum formed by electromagnetic radiation that has passed through a medium in which radiation of certain frequencies is absorbed.
Origin
1875-1880
1875-80
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for absorption spectrum
  • The sensor identifies the infrared absorption spectrum of a gas.
  • It has an absorption spectrum that's almost ideal for the sun.
  • Quantum dots fluoresce with a broad absorption spectrum and a narrow emission spectrum.
British Dictionary definitions for absorption spectrum

absorption spectrum

noun
1.
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 & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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absorption spectrum in Medicine

absorption spectrum n.
The electromagnetic spectrum, broken by a specific pattern of dark lines or bands, observed when radiation traverses a particular absorbing medium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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absorption spectrum in Science
absorption spectrum  
The range of frequencies of electromagnetic radiation readily absorbed by a substance by virtue of its chemical composition. See more at atomic spectrum.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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