Coaxial refers to a type of cable that consists of an inner conductor surrounded by a concentric conducting shield, separated by an insulating layer. This design allows for the efficient transmission of electrical signals, making it commonly used in applications like television and internet connections. The coaxial cable minimizes interference and signal loss, ensuring better performance. The term "coaxial" comes from the word "coax," meaning to draw together. This design is also used in coaxial connectors, which help connect devices while maintaining the integrity of the signal. Overall, coaxial technology plays a crucial role in modern communication systems.