The most common meaning for ADSL is "Asymmetric Digital Subscriber Line." It is referring to a form of Digital Subscriber Line, which is a data communications technology.

Digital subscriber line

dismally slow line� haha, saw it on a billboard - thought it was funny/TRUE

originally stood for digital subscriber loop. It is broadband technology that allows high-speed internet access through your standard phone line.

An asymmetric digital subscriber line is a communications system characterized by moderately high speeds, different in each direction.

Digital subscriber line

Digital subscriber line .