coaxial cable

noun

: a transmission line that consists of a tube of electrically conducting material surrounding a central conductor held in place by insulators and that is used to transmit telegraph, telephone, television, and Internet signals

called also coax cable

Examples of coaxial cable 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.
Cox internet is powered by fiber, but connected via a coaxial cable line. Kara McGinley, USA Today, 14 Aug. 2025 Server racks house obsolete coaxial cable boxes, displayed as if in a museum, next to today’s fiber-optic boxes. IEEE Spectrum, 6 Aug. 2025 But Northwood could not decode the message due to a coaxial cable being plugged into the wrong port. ArsTechnica, 11 June 2025 Fiber optic cable, in my opinion, is more fragile than traditional solid-copper coaxial cable. Tim Carter, Hartford Courant, 10 May 2025 See All Example Sentences for coaxial cable

Word History

First Known Use

1935, in the meaning defined above

Time Traveler
The first known use of coaxial cable was in 1935

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Cite this Entry

“Coaxial cable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coaxial%20cable. Accessed 5 Sep. 2025.

Kids Definition

coaxial cable

noun
co·​ax·​i·​al cable
kō-ˌak-sē-əl-
: a cable that consists of a tube of electrically conducting material surrounding a central conductor and is used to send telegraph, telephone, and television signals

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