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

To evaluate the Hina battery, Schütte and colleagues examined 120 sodium-ion cells using impedance spectroscopy, a non-destructive method that measures battery uniformity.

From Science Daily • Jun. 21, 2026

"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

With this protection, the carbene becomes stable enough for detailed analysis using nuclear magnetic resonance spectroscopy and x-ray crystallography, offering clear evidence that such molecules can exist in water.

From Science Daily • Apr. 11, 2026

The researchers confirmed this mechanism using advanced electron microscopy, spectroscopy, and quantum-level simulations.

From Science Daily • Apr. 7, 2026

In like manner, he did work in optics that transformed our understanding of light and laid the foundation for the science of spectroscopy, and again chose not to share the results for three decades.

From "A Short History of Nearly Everything" by Bill Bryson