spectroscopy

American  

[spek-tros-kuh-pee, spek-truh-skoh-pee] / spɛkˈtrɒs kə pi, ˈspɛk trəˌskoʊ pi /

noun

1. the science that deals with the use of the spectroscope and with spectrum analysis.

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spectroscopy British  

/ spɛkˈtrɒskəpɪ /

noun

1. the science and practice of using spectrometers and spectroscopes and of analysing spectra, the methods employed depending on the radiation being examined. The techniques are widely used in chemical analysis and in studies of the properties of atoms, molecules, ions, etc

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spectroscopy Scientific  

/ spĕk-trŏs′kə-pē /

1. The analysis of spectra, especially light or mass spectra, to determine properties of their source.

2. ◆ In light or optical spectroscopy, the spectrum of a light source is analyzed through a spectroscope to determine atomic composition of a substance. In astronomy, phenomena such as red shift can also be analyzed.

3. ◆ In mass spectroscopy, a spectroscope is used to determine the composition of ions or charged molecules in a sample. Spectroscopy is also called spectrography.

4. See also atomic spectrum spectroscope

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spectroscopy Cultural  

1. The branch of science devoted to discovering the chemical composition of materials by looking at the light (and other kinds of electromagnetic radiation) they emit. Scientists use spectroscopy to determine the nature of distant stars and galaxies as well as to identify and monitor the production of products in factories.

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Other Word Forms

• spectroscopist
  noun

Etymology

Origin of spectroscopy

First recorded in 1865–70; spectro- + -scopy

Example Sentences

"Gaia is delivering on its promise: by combining its data with ground-based spectroscopy and galaxy simulations, it allows us to decipher the formation history of our Galaxy."

From Science Daily • Apr. 29, 2026

This allowed the researchers to analyze its structure with high precision using infrared spectroscopy.

From Science Daily • Apr. 7, 2026

To investigate the sample, the researchers used advanced techniques called nanoscale infrared spectroscopy and Raman spectroscopy.

From Science Daily • Mar. 31, 2026

Advanced spectroscopy techniques allowed them to observe and confirm the battery's rapid charging behavior.

From Science Daily • Mar. 22, 2026

The regulator analyzes the air with spectroscopy, then separates the gasses by supercooling them.

From "The Martian" by Andy Weir