spectrograph

noun

spec·​tro·​graph ˈspek-t(r)ə-ˌgraf How to pronounce spectrograph (audio)
: an instrument for dispersing radiation (such as electromagnetic radiation or sound waves) into a spectrum and recording or mapping the spectrum
spectrographic adjective
spectrographically adverb
spectrography noun

Examples of spectrograph in a Sentence

Recent Examples on the Web Other equipment suggested for the chip include a spectrograph to identify the chemistry of a planet’s atmosphere and a magnetometer to measure a star’s magnetic field. Ann Finkbeiner, Scientific American, 22 Dec. 2016 In the next few years, astronomers hope these combs could help improve the precision of stellar spectrographs by a factor of 10, if not more. IEEE Spectrum, 30 Dec. 2011 Astronomers at the European Southern Observatory in Chile used a spectrograph called HARPS to track tiny variations in the starlight caused by the pull of the planets. Andrew Moseman, Discover Magazine, 20 Nov. 2019 One of the new instrument’s primary goals will be to use a spectrograph to break up the light from these distant worlds into a spectrum, which can then be analyzed for specific signals associated with certain chemicals in the planet’s atmosphere. Dan Falk, Smithsonian Magazine, 29 Jan. 2024 See all Example Sentences for spectrograph 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'spectrograph.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1884, in the meaning defined above

Time Traveler
The first known use of spectrograph was in 1884

Dictionary Entries Near spectrograph

Cite this Entry

“Spectrograph.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spectrograph. Accessed 2 Jul. 2024.

Kids Definition

spectrograph

noun
spec·​tro·​graph ˈspek-t(r)ə-ˌgraf How to pronounce spectrograph (audio)
: an instrument for spreading radiation (as of light or sound) into a spectrum and photographing or mapping the spectrum

Medical Definition

spectrograph

noun
spec·​tro·​graph -ˌgraf How to pronounce spectrograph (audio)
: an instrument for dispersing radiation (as electromagnetic radiation or sound waves) into a spectrum and photographing or mapping the spectrum
spectrographic adjective
spectrographically adverb
spectrography noun
plural spectrographies

More from Merriam-Webster on spectrograph

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