in·​ter·​fer·​om·​e·​ter | \ ˌin-tər-fə-ˈrä-mə-tər How to pronounce interferometer (audio) , ˌin-tə-, -ˌfi-ˈrä- \

Definition of interferometer

: an apparatus that utilizes the interference of waves (as of light) for precise determinations (as of distance or wavelength)

Other Words from interferometer

interferometric \ ˌin-​tər-​ˌfir-​ə-​ˈme-​trik How to pronounce interferometer (audio) , ˌin-​tə-​ \ adjective
interferometrically \ ˌin-​tər-​ˌfir-​ə-​ˈme-​tri-​k(ə-​)lē How to pronounce interferometer (audio) , ˌin-​tə-​ \ adverb
interferometry \ ˌin-​tər-​fə-​ˈrä-​mə-​trē How to pronounce interferometer (audio) , ˌin-​tə-​ , -​ˌfi-​ˈrä-​ \ noun

Examples of interferometer in a Sentence

Recent Examples on the Web Bartholomew and his colleagues have been working together on QHDs that could one day be used to build such an interferometer. Anil Ananthaswamy, Scientific American, 19 Apr. 2021 And to detect the tiny stretching of space, the interferometer arms must be long. Adrian Cho, Science | AAAS, 10 Mar. 2021 To tamp down other vibrations, the interferometer must be housed in a vacuum chamber and the weighty mirrors hung from sophisticated suspension systems. Adrian Cho, Science | AAAS, 10 Mar. 2021 The third detector is Virgo, an interferometer near Pisa, Italy, that has 3-kilometer-long arms and joined the hunt for gravitational waves in 2017. Adrian Cho, Science | AAAS, 28 Oct. 2020 New facilities, including the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo interferometer, are studying merging pairs of black holes by detecting their emissions of ripples in spacetime called gravitational waves. Lee Billings, Scientific American, 6 Oct. 2020 The term for a device that measures interference is, well, an interferometer. Caroline Delbert, Popular Mechanics, 8 Sep. 2020 With the accompanying interferometer, the tool can illuminate details 25 times finer than individual telescopes. Scottie Andrew, CNN, 2 Aug. 2020 Among the recent enhancements is an atom interferometer, which can use the BECs to measure any changes in gravity on a planetary surface. Jennifer Ouellette, Ars Technica, 15 June 2020

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

1897, in the meaning defined above

History and Etymology for interferometer

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The first known use of interferometer was in 1897

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“Interferometer.” Dictionary, Merriam-Webster, Accessed 6 Dec. 2021.

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More Definitions for interferometer


in·​ter·​fer·​om·​e·​ter | \ ˌint-ə(r)-fə-ˈräm-ət-ər, -ˌfir-ˈäm- How to pronounce interferometer (audio) \

Medical Definition of interferometer

: an instrument that utilizes the interference of waves (as of light) for precise determination especially of wavelength, spectral fine structure, indices of refraction, and very small linear displacements

Other Words from interferometer

interferometric \ -​ˌfir-​ə-​ˈme-​trik How to pronounce interferometer (audio) \ adjective
interferometrically \ -​tri-​k(ə-​)lē How to pronounce interferometer (audio) \ adverb
interferometry \ -​fə-​ˈräm-​ə-​trē, -​ˌfir-​ˈäm-​ How to pronounce interferometer (audio) \ noun, plural interferometries

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