spec·​tro·​graph | \ ˈspek-t(r)ə-ˌgraf How to pronounce spectrograph (audio) \

Definition of spectrograph

: an instrument for dispersing radiation (such as electromagnetic radiation or sound waves) into a spectrum and recording or mapping the spectrum

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Other Words from spectrograph

spectrographic \ ˌspek-​t(r)ə-​ˈgra-​fik How to pronounce spectrograph (audio) \ adjective
spectrographically \ ˌspek-​t(r)ə-​ˈgra-​fi-​k(ə-​)lē How to pronounce spectrograph (audio) \ adverb
spectrography \ spek-​ˈträ-​grə-​fē How to pronounce spectrograph (audio) \ noun

Examples of spectrograph in a Sentence

Recent Examples on the Web My daughter, Starling, looked so small in my viewfinder, struggling under the weight of her spectrograph. Karen Russell, The New Yorker, 4 Oct. 2021 The new spectrograph is capable of observing 5,000 targets simultaneously and is positioned on a telescope that has a primary mirror with a diameter approximately twice that of the Sloan telescope’s. Kyle Dawson, Scientific American, 1 May 2021 Determining the photochemical reactions happening in a faraway atmosphere takes an advanced and extremely fine-tuned telescope fit with a spectrograph. Meghan Herbst, Wired, 4 Mar. 2021 Fischer’s high-precision EXPRES radial velocity spectrograph—and an even more advanced European counterpart, ESPRESSO—are both already operational. Lee Billings, Scientific American, 10 Feb. 2021 The next step was to use the high-resolution spectrograph at the W.M. Keck Observatory in Hawaii to search for evidence of a companion around the star. Jennifer Ouellette, Ars Technica, 18 Nov. 2020 Among the spacecraft's instruments is an ultraviolet spectrograph, or UVS, that images Jupiter's auroras in ultraviolet light. Ashley Strickland, CNN, 28 Oct. 2020 To get a better look at the system, the team used the European Southern Observatory's HARPS spectrograph in Chile. Jennifer Leman, Popular Mechanics, 6 July 2020 The High Accuracy Radial velocity Planet Searcher, known as the HARPS spectrograph, detected two planets around Gliese 887. Ashley Strickland, CNN, 25 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'spectrograph.' 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 spectrograph

1884, in the meaning defined above

History and Etymology for spectrograph

International Scientific Vocabulary

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Time Traveler for spectrograph

Time Traveler

The first known use of spectrograph was in 1884

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Last Updated

18 Oct 2021

Cite this Entry

“Spectrograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spectrograph. Accessed 21 Oct. 2021.

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More Definitions for spectrograph


spec·​tro·​graph | \ -ˌgraf How to pronounce spectrograph (audio) \

Medical Definition of spectrograph

: an instrument for dispersing radiation (as electromagnetic radiation or sound waves) into a spectrum and photographing or mapping the spectrum

Other Words from spectrograph

spectrographic \ ˌspek-​t(r)ə-​ˈgraf-​ik How to pronounce spectrograph (audio) \ adjective
spectrographically \ -​i-​k(ə-​)lē How to pronounce spectrograph (audio) \ adverb
spectrography \ spek-​ˈträg-​rə-​fē How to pronounce spectrograph (audio) \ noun, plural spectrographies

More from Merriam-Webster on spectrograph

Britannica.com: Encyclopedia article about spectrograph


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