Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.

Alternative Title: digital subscriber line. DSL, in full digital subscriber line, networking technology that provides broadband (high-speed) Internet connections over conventional telephone lines.

DSL (digital subscriber line) is a type of technology that connects you to the internet over a telephone network. Verizon's DSL gives you a dedicated internet access line from our central office to your...