transmission line

A transmission line is the material medium or structure that forms all or part of a path from one place to another for directing the transmission of energy, such as electromagnetic waves or acoustic waves, as well as electric power transmission. Components of transmission lines include wires, coaxial cables, dielectric slabs, optical fibers, electric power lines, and waveguides.
See more at Wikipedia.org...

The material medium or structure that forms all or part of a path from one place to another for directing the transmission of energy, such as electric currents, magnetic fields, acoustic waves, or electromagnetic waves. Note: Examples of transmission lines include wires, optical fibers, coaxial cables, rectangular closed waveguides, and dielectric slabs.

Noun
1. a conductor for transmitting electrical or optical signals or electric power
(synonym) cable, line
(hypernym) conductor
(hyponym) coaxial cable, coax, coax cable
(part-holonym) telephone system, phone system