Coaxial cable, which is a type of cable that uses a center conductor, wrapped by an insulating layer, surrounded by a braided work mesh and an outer jacket or sheath, to carry high bandwidth signals such as network traffic or broadcast television frequencies.
Definition 2.
Coaxial Cable consists of a central conducting cooper core, surrounded first by a layer of insulating material and then by a second conducting layer of braided wire mesh. Used extensively in the cable television industry and in computer networks covering short distances.