spectrometer

noun

spec·​trom·​e·​ter spek-ˈträ-mə-tər How to pronounce spectrometer (audio)
1
: an instrument used for measuring wavelengths of light spectra
2
: any of various analytical instruments in which an emission (as of particles or radiation) is dispersed according to some property (such as mass or energy) of the emission and the amount of dispersion is measured
nuclear magnetic resonance spectrometer
spectrometric adjective
spectrometry noun

Examples of spectrometer in a Sentence

Recent Examples on the Web For the new study, the researchers made observations across 18 states from two aircraft, measuring methane leaks using imaging spectrometers. Will Sullivan, Smithsonian Magazine, 3 Apr. 2024 In the 1970s, space scientists began using far-infrared and submillimeter-wave spectrometers for investigating the chemical compositions of the interstellar medium and planetary atmospheres. IEEE Spectrum, 7 Mar. 2024 With a total mission budget of $964 million, the three instruments on board include an optical spectrometer designed and built by NASA and two other polarimeters, one from the University of Maryland and one from a consortium of organizations in the Netherlands. USA TODAY, 29 Jan. 2024 That spectrometer, the prototype of today's x-ray diffractometers, is still housed in the Royal Institution, as well as their model of the atomic structure of rock salt. Jennifer Ouellette, Ars Technica, 26 Dec. 2023 For example, a photoelectron spectrometer detects how many electrons were removed from the atom by the probe pulse, or a photon spectrometer measures how much of the probe pulse was absorbed by the atom. Niranjan Shivaram, The Conversation, 4 Oct. 2023 Unlike the home testing swabs, which are known to be unreliable, Rubin uses XRF technology—the same $35,000 spectrometer used by the US Consumer Product Safety Commission (CPSC), which has the power to recall products—and has confirmed the presence of lead. Ali Francis, Bon Appétit, 1 Feb. 2024 As the tissues vaporize, a spectrometer analyzes and classifies the results using on-board memory to map the patient’s bone and soft tissue regions. Andrew Paul, Popular Science, 6 Dec. 2023 James Dewar in the Royal Institution, circa 1900 Public domain A Dewar flask Royal Institution The x-ray spectrometer developed by William Henry Bragg. Jennifer Ouellette, Ars Technica, 26 Dec. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'spectrometer.' 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

1874, in the meaning defined at sense 1

Time Traveler
The first known use of spectrometer was in 1874

Dictionary Entries Near spectrometer

Cite this Entry

“Spectrometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spectrometer. Accessed 21 Apr. 2024.

Kids Definition

spectrometer

noun
spec·​trom·​e·​ter spek-ˈträm-ət-ər How to pronounce spectrometer (audio)
1
: an instrument for producing a spectrum
2
: an instrument that spreads particles or radiation into an ordered sequence (as by mass or energy)

Medical Definition

spectrometer

noun
spec·​trom·​e·​ter spek-ˈträm-ət-ər How to pronounce spectrometer (audio)
1
: an instrument used for measuring wavelengths of light spectra
2
: any of various analytical instruments in which an emission (as of particles or radiation) is dispersed according to some property (as mass or energy) of the emission and the amount of dispersion is measured
nuclear magnetic resonance spectrometer
spectrometric adjective
spectrometry noun
plural spectrometries

More from Merriam-Webster on spectrometer

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!