waveguide

noun

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The right lens is etched with a rectangular waveguide that is only visible to others from the back. PC Magazine, 11 Apr. 2025 The underlying mechanics involve a slab waveguide composed of a silicon nitride core, a photoconductive silicon-rich nitride layer, and an indium tin oxide electrode. The Physics Arxiv Blog, Discover Magazine, 31 Mar. 2025 Snap has similarly used projector and waveguide technology in its Snap spectacles. Lauren Goode, WIRED, 25 Sep. 2024 Anello’s low-loss silicon nitride waveguides allow light to circulate longer within the gyroscope, improving signal strength and reducing error accumulation. IEEE Spectrum, 10 Feb. 2025 See All Example Sentences for waveguide

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of waveguide was in 1932

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Cite this Entry

“Waveguide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/waveguide. Accessed 24 Apr. 2025.

Medical Definition

waveguide

noun
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

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