spec·​tros·​co·​py | \ spek-ˈträ-skə-pē How to pronounce spectroscopy (audio) \

Definition of spectroscopy

1 : the process or technique of using a spectroscope or spectrometer
2 : the production and investigation of spectra

Examples of spectroscopy in a Sentence

Recent Examples on the Web During the dive, Cassini took samples of the spray and used mass-spectroscopy to reveal that the plumes contained high concentrations of methane, carbon monoxide, carbon dioxide, hydrogen, and various other materials, Inverse reports. Elizabeth Gamillo, Smithsonian Magazine, 9 July 2021 Reflectance imaging spectroscopy can also identify organic molecules like those found in cochineal insects that have been pulverized to produce a deep red pigment. New York Times, 28 June 2021 With the Hubble and Webb telescopes, Scientists will be able to use transmission spectroscopy to capture starlight emitted from TOI-1231 b through its atmosphere. Gia Yetikyel, Smithsonian Magazine, 16 June 2021 Raman spectroscopy, then rover cameras, then orbiter cameras. Adam Rogers, Wired, 23 Feb. 2021 After filtering the dust from the snow, the team used electron microscopy, x-ray spectroscopy and other techniques to analyze more than 2,000 particles ranging from 12 to 700 microns. Sarah Derouin, Scientific American, 29 Apr. 2021 Currently, there are three main BCI technologies available: invasive, non-invasive electrical (EEG) and near-infrared spectroscopy (NIRS). Bijan Khosravi, Forbes, 4 Apr. 2021 The authors of the study (an international group of astronomers) detected the planet’s atmosphere with a technique called transmission spectroscopy. Asa Stahl, Chron, 19 Mar. 2021 The instrument can also recognize specific chemical links, such as a carbon atom stuck to an oxygen atom, using what’s known as Raman spectroscopy. Charlie Wood, Popular Science, 11 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spectroscopy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of spectroscopy

1869, in the meaning defined at sense 1

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Time Traveler for spectroscopy

Time Traveler

The first known use of spectroscopy was in 1869

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Dictionary Entries Near spectroscopy

spectroscopic parallax



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Statistics for spectroscopy

Last Updated

2 Aug 2021

Cite this Entry

“Spectroscopy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spectroscopy. Accessed 23 Sep. 2021.

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More Definitions for spectroscopy


spec·​tros·​co·​py | \ spek-ˈträs-kə-pē How to pronounce spectroscopy (audio) \
plural spectroscopies

Medical Definition of spectroscopy

1a : the production and investigation of spectra
b : the process or technique of using a spectroscope or spectrometer
2 : physics that deals with the theory and interpretation of interactions between matter and radiation (as electromagnetic radiation)

More from Merriam-Webster on spectroscopy

Britannica.com: Encyclopedia article about spectroscopy


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