spec·​tro·​graph | \ ˈspek-t(r)ə-ˌgraf \

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 \ adjective
spectrographically \ ˌspek-​t(r)ə-​ˈgra-​fi-​k(ə-​)lē \ adverb
spectrography \ spek-​ˈträ-​grə-​fē \ noun

Examples of spectrograph in a Sentence

Recent Examples on the Web

So, a relativistic camera would naturally serve as a spectrograph, allowing researchers to look at an intrinsically redder band of light. Scientific American, "Astronomy at the Speed of Light," 3 July 2018 Imaging with a spectrograph provided evidence of water at the Martian surface in the region, reinforcing the idea that this could be ice. John Timmer, Ars Technica, "Large sheets of ice may have been spotted on Mars," 11 Jan. 2018 Researchers working with a project called Galactic Archaeology used a spectrograph at the Australian Astronomical Observatory to analyze the chemical composition of 340,000 stars. Avery Thompson, Popular Mechanics, "Scientists Are Searching For Our Sun's Stellar Siblings," 23 Apr. 2018 And of course the scientists would all go and set up telescopes and spectrographs. Popular Mechanics, "The Asteroid Hunters," 11 Nov. 2015 The instrument weighs 80 pounds, has an imaging spectrograph that measures light wavelength intensity. Richard Tribou, OrlandoSentinel.com, "NASA hitches ride on commercial satellite for UCF-led atmosphere study," 26 Jan. 2018 As an integral field spectrograph, HARMONI will be capable of capturing 4,000 images simultaneously. Dyllan Furness, Fox News, "Massive telescope will let us gaze deeper into the galaxy than ever before," 1 June 2017 A colorful projection of a digital spectrograph — a standard imaging tool that measures frequency analysis — was cast onto the gallery’s floor. Reena Jana, WIRED, "Sounds Like an Art Opening," 13 Jan. 2001

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

The first known use of spectrograph was in 1884

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More Definitions for spectrograph


spec·​tro·​graph | \ -ˌgraf \

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 \ adjective
spectrographically \ -​i-​k(ə-​)lē \ adverb
spectrography \ spek-​ˈträg-​rə-​fē \ noun, plural spectrographies

More from Merriam-Webster on spectrograph

Rhyming Dictionary: Words that rhyme with spectrograph

Britannica.com: Encyclopedia article about spectrograph

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a servile follower or underling

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