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A cable consisting of a conducting outer metal tube enclosing and insulated from a central conducting core, used primarily for the transmission of high-frequency signals. Also called coaxial line.
(Electronics) 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 signals. Often shortened to: coax
a cable with an insulated tube through which an insulated conductor runs, transmitting high-frequency telephone, telegraph, digital, or TV signals.