spectrograph
noun
spec·tro·graph
ˈspek-t(r)ə-ˌgraf 
: an instrument for dispersing radiation (such as electromagnetic radiation or sound waves) into a spectrum and recording or mapping the spectrum
Examples of spectrograph in a Sentence
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The spectrograph breaks down far-ultraviolet light emitted by a material into its component wavelengths, similar to what a prism does with visible light, creating a spectrum that scientists can analyze.
—
Katie Hunt, CNN Money, 28 Apr. 2025
During one exceptional spacewalk repair on STS-125, Michael Massimino and Michael Good had to rip a stuck handrail off Hubble by hand in order to repair a broken spectrograph, which itself was unprecedented.
—Tariq Malik, Space.com, 25 Apr. 2025
Locating the Lyman break requires imaging with a spectrograph, which can sample the full spectrum of near-infrared light.
—John Timmer, Ars Technica, 31 July 2024
The first planet was detected using a 27-foot diameter telescope at the European Space Observatory’s Paranal Observatory in Chile and a spectrograph that could quickly detect changes in the star's velocity, according to the 2024 paper, published in the journal Astronomy & Astrophysics.
—Julia Jacobo, ABC News, 18 Mar. 2025
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Katie Hunt, CNN Money, 28 Apr. 2025
During one exceptional spacewalk repair on STS-125, Michael Massimino and Michael Good had to rip a stuck handrail off Hubble by hand in order to repair a broken spectrograph, which itself was unprecedented.
—Tariq Malik, Space.com, 25 Apr. 2025
Locating the Lyman break requires imaging with a spectrograph, which can sample the full spectrum of near-infrared light.
—John Timmer, Ars Technica, 31 July 2024
The first planet was detected using a 27-foot diameter telescope at the European Space Observatory’s Paranal Observatory in Chile and a spectrograph that could quickly detect changes in the star's velocity, according to the 2024 paper, published in the journal Astronomy & Astrophysics.
—Julia Jacobo, ABC News, 18 Mar. 2025
See All Example Sentences for spectrograph
Cite this Entry
“Spectrograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spectrograph. Accessed 8 May. 2025.
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spectrograph
noun
spec·tro·graph
ˈspek-t(r)ə-ˌgraf
: an instrument for spreading radiation (as of light or sound) into a spectrum and photographing or mapping the spectrum
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