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 mystery of rogue planet formation The team made their discovery by analyzing observation data from the X-shooter spectrograph on ESO’s VLT, located in Chile’s Atacama Desert.
—
Chris Young, Interesting Engineering, 2 Oct. 2025
Next, the researchers studied it using the X-shooter spectrograph on the Very Large Telescope, which can capture different wavelengths of light emitted by an object ranging from ultraviolet to near-infrared.
—Ashley Strickland, CNN Money, 2 Oct. 2025
The nature of the four components of UPM J1040−3551 AabBab was confirmed by spectroscopy performed for Aab using optical light using the Goodman spectrograph on the Southern Astrophysical Research (SOAR) Telescope at Cerro Tololo Inter-American Observatory in Chile.
—Robert Lea, Space.com, 22 Aug. 2025
The mission was the first to carry technology combining a standard imager to capture photos and videos with a spectrograph, which dissects light into its various wavelengths, according to NASA.
—Eric Lagatta, USA Today, 21 July 2025
See All Example Sentences for spectrograph
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Chris Young, Interesting Engineering, 2 Oct. 2025
Next, the researchers studied it using the X-shooter spectrograph on the Very Large Telescope, which can capture different wavelengths of light emitted by an object ranging from ultraviolet to near-infrared.
—Ashley Strickland, CNN Money, 2 Oct. 2025
The nature of the four components of UPM J1040−3551 AabBab was confirmed by spectroscopy performed for Aab using optical light using the Goodman spectrograph on the Southern Astrophysical Research (SOAR) Telescope at Cerro Tololo Inter-American Observatory in Chile.
—Robert Lea, Space.com, 22 Aug. 2025
The mission was the first to carry technology combining a standard imager to capture photos and videos with a spectrograph, which dissects light into its various wavelengths, according to NASA.
—Eric Lagatta, USA Today, 21 July 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 29 Oct. 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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