fiber-optic

adjective

fi·​ber-op·​tic ˈfī-bər-ˌäp-tik How to pronounce fiber-optic (audio)
: of, relating to, or using fiber optics

Examples of fiber-optic in a Sentence

Recent Examples on the Web
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This is why light already dominates internet communications through fiber-optic cables. Rupendra Brahambhatt, Interesting Engineering, 16 May 2026 Importantly, the turret appears to be effective against Russian fiber-optic drones, which are immune to jamming. Katya Soldak, Forbes.com, 15 May 2026 The first physical act was running a fiber-optic cable to a telephone pole. Nick Lichtenberg, Fortune, 15 May 2026 As part of this work, hundreds of seismometers, as well as networks of fiber-optic cables, will be used to record even the tiniest of earthquakes, during periods of tranquility and unrest. Quanta Magazine, 8 May 2026 See All Example Sentences for fiber-optic

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of fiber-optic was in 1961

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Cite this Entry

“Fiber-optic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fiber-optic. Accessed 23 May. 2026.

Kids Definition

fiber-optic

adjective
fi·​ber-op·​tic
ˈfī-bər-ˌäp-tik
: of or relating to fiber optics
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