[ 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.

Nearby words

  1. spectroheliograph,
  2. spectrohelioscope,
  3. spectrological,
  4. spectrologically,
  5. spectrology,
  6. spectrometric,
  7. spectrometry,
  8. spectromicroscope,
  9. spectrophotoelectric,
  10. spectrophotometer

Origin of spectrometer

First recorded in 1870–75; spectro- + -meter

Related formsspec·tro·met·ric [spek-truh-me-trik] /ˌspɛk trəˈmɛ trɪk/, adjectivespec·trom·e·try, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for spectrometer

British Dictionary definitions for spectrometer


/ (spɛkˈtrɒmɪtə) /


any instrument for producing a spectrum, esp one in which wavelength, energy, intensity, etc, can be measuredSee also mass spectrometer
Derived Formsspectrometric (ˌspɛktrəʊˈmɛtrɪk), adjectivespectrometry, 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

Medicine definitions for spectrometer


[ spĕk-trŏmĭ-tər ]


A spectroscope equipped with scales for measuring wavelengths or indexes of refraction.
Related formsspec′tro•metric (-trə-mĕtrĭk) adj.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for spectrometer


[ spĕk-trŏmĭ-tər ]

A spectroscope equipped with devices for measuring the frequencies of the radiation observed by it.
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