coaxial cable


Definition of coaxial cable 

: 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

The cable industry has abused geographic monopolies to raise prices almost since the first coaxial cables were strung on telephone poles. Andy Kessler, WSJ, "AT&T’s ‘South Park’ Argument," 18 Mar. 2018 In the case of a coaxial cable, the dielectric is usually chosen such that a 50Ohm resistor will match the properties of the cable. Chris Lee, Ars Technica, "Perfect Wi-Fi energy harvester gathers scant bounty," 15 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coaxial cable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of coaxial cable

1935, in the meaning defined above

Keep scrolling for more

Learn More about coaxial cable

Share coaxial cable

Dictionary Entries near coaxial cable




coaxial cable

coaxial speaker



Statistics for coaxial cable

Look-up Popularity

Time Traveler for coaxial cable

The first known use of coaxial cable was in 1935

See more words from the same year

Keep scrolling for more

More Definitions for coaxial cable

coaxial cable


English Language Learners Definition of coaxial cable

: a type of electric cable that is used to send telegraph, telephone, and television signals

More from Merriam-Webster on coaxial cable Encyclopedia article about coaxial cable

Comments on coaxial cable

What made you want to look up coaxial cable? Please tell us where you read or heard it (including the quote, if possible).


required by fashion, etiquette, or custom

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!