wave·​guide ˈwāv-ˌgīd How to pronounce waveguide (audio)
: a device (such as a duct, coaxial cable, or glass fiber) designed to confine and direct the propagation of electromagnetic waves (such as light)
especially : a metal tube for channeling ultrahigh-frequency waves

Examples of waveguide in a Sentence

Recent Examples on the Web With integrated photonics, the precise alignment is inherent, because the waveguides carrying the light are lithographically defined. Michael Watts, IEEE Spectrum, 20 Aug. 2023 Light enters the waveguide through a small aperture in the microprojector, which is hidden in the temple of the eyeglasses, and leaves the waveguide through a larger aperture at the other end. Ari Grobman, Forbes, 19 July 2022 These chips replace the electrons found in conventional processors with photons and use optical components like waveguides, filters, and light detectors to create circuits that can carry out computational tasks. IEEE Spectrum, 5 May 2023 Imagine a waveguide—a cylindrical pathway that confines the motion of a particle (an optical fiber is such a waveguide for photons of light, for example). Anil Ananthaswamy, Scientific American, 21 Oct. 2021 Okan Atalar and Amin Arbabian in Stanford’s electrical engineering department started with thin-film lithium niobate, a material often used for waveguides and optical switches in cellphones and communications systems. IEEE Spectrum, 8 Mar. 2023 This device consists of a microwave power supply, an air compressor, a compressed microwave waveguide, and a flame igniter. IEEE Spectrum, 14 Mar. 2023 The first stage provides a simple on–off movement of the coupler waveguide, thereby engaging or disengaging the coupler to the bus. IEEE Spectrum, 16 Jan. 2023 Snapdragon XR2 platform and a full-color Micro LED optical waveguide display to show heads-up information like navigation and language translation in the wearer’s field of view. Allison Johnson, The Verge, 4 Jan. 2023 See More

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

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of waveguide was in 1932

Dictionary Entries Near waveguide

Cite this Entry

“Waveguide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/waveguide. Accessed 7 Dec. 2023.

Medical Definition


wave·​guide ˈwāv-ˌgīd How to pronounce waveguide (audio)
: a device (as a glass fiber) designed to confine and direct the propagation of electromagnetic waves (as light)
use of waveguides for visual examination of the stomach

More from Merriam-Webster on waveguide

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