A generic name for digital lines that are provided by telephone companies to their local subscribers and that carry data at high speeds WordNet 3.0 & Open English WordNet

Digital subscriber line is a family of technologies that are used to transmit digital data over telephone lines. Wikipedia

A device used to connect a computer or router to a telephone line Wikipedia Disambiguation

Technologies for transmission of digital data over telephone lines Wikidata

A family of technologies that provides digital data transmission over the wires of a local telephone network. OmegaWiki

A family of technologies that provides digital data transmission over the wires of a local telephone network. Often, this notion is used for the Asymmetric Digital Subscriber Line (ADSL), the most commonly installed technical variety of DSL. Wiktionary