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coaxial cable

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noun Electricity.
  1. a cable that consists of an insulated conducting tube through which a central, insulated conductor runs, used for transmitting high-frequency telephone, telegraph, digital, or television signals.
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Origin of coaxial cable

First recorded in 1935–40
Also called coax.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for coaxial cable

coaxial cable

noun
  1. a cable consisting of an inner insulated core of stranded or solid wire surrounded by an outer insulated flexible wire braid, used esp as a transmission line for radio-frequency signalsOften shortened to: coax
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

coaxial cable in Science

coaxial cable

[kō-ăksē-əl]
  1. A cable consisting of an electrically conductive wire surrounded by a layer of insulating material, a layer of shielding material, and an outer layer of insulating material, usually plastic or rubber. The purpose of the shielding layer is to reduce external electrical interference. Coaxial cables are used for transmission of high-frequency audio, video, computer network and other signals.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.