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[spek-trom-i-ter] /spɛkˈtrɒm ɪ tər/
noun, Optics.
an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined.
1870-75; spectro- + -meter
Related forms
[spek-truh-me-trik] /ˌspɛk trəˈmɛ trɪk/ (Show IPA),
spectrometry, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for spectrometer
  • The colors reflect back to a spectrometer outside the patient's body.
  • The spectrometer then measures two qualities of the reflected rays.
  • The prism is the method used by the old spectrometer above to view different colors of light.
  • Then a startling finding came from the neutron spectrometer, which indicated significant amounts of hydrogen at the poles.
  • But an instrument called a spectrometer disperses the light, which allows measurements of the various bands of colors.
  • Using an infrared spectrometer, scientists can also identify specific ink types.
  • The rover examined the find with microscopic imager, its panoramic camera and its x-ray spectrometer.
British Dictionary definitions for spectrometer


any instrument for producing a spectrum, esp one in which wavelength, energy, intensity, etc, can be measured See also mass spectrometer
Derived Forms
spectrometric (ˌspɛktrəʊˈmɛtrɪk) adjective
spectrometry, noun
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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spectrometer in Medicine

spectrometer spec·trom·e·ter (spěk-trŏm'ĭ-tər)
A spectroscope equipped with scales for measuring wavelengths or indexes of refraction.

spec'tro·met'ric (-trə-mět'rĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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spectrometer in Science
A spectroscope equipped with devices for measuring the frequencies of the radiation observed by it.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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