transmission line

American  

noun

Electricity.

1. a system of conductors, as coaxial cable, a wave guide, or a pair of parallel wires, used to transmit signals.

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transmission line British  

noun

1. Sometimes shortened to: line.  a coaxial cable, waveguide, or other system of conductors that transfers electrical signals from one location to another

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Etymology

Origin of transmission line

First recorded in 1905–10

Example Sentences

Pizarro has said that a leading theory of the fire’s cause is that a century-old transmission line in Eaton Canyon, which had not carried power for 50 years, somehow re-energized and sparked the fire.

From Los Angeles Times • Feb. 18, 2026

A transmission line importing electricity from Uzbekistan was also damaged on Thursday, leaving households in almost 12 provinces without power.

From Barron's • Jan. 24, 2026

County filed suit against Edison, claiming that its transmission line sparked the blaze, requiring the county to incur tens of millions of dollars responding to the fire and its aftermath.

From Los Angeles Times • Jan. 16, 2026

Building a new transmission line can take up to a decade, with most of that time spent consulting local communities and securing various approvals.

From The Wall Street Journal • Dec. 28, 2025

The completion of a new thermal power plant near Vlore and improved transmission line between Albania and Montenegro will help relieve the energy shortages.

From The 2008 CIA World Factbook by United States. Central Intelligence Agency