DSL

digital telephone technology that allows data transmission of up to 1.544 megabits per second using ordinary telephone lines (Telecommunications)

DSL or xDSL, is a family of technologies that provide digital data transmission over the wires of a local telephone network. DSL originally stood for digital subscriber loop, although in recent years, many have adopted digital subscriber line as a more marketing-friendly term for the most popular version of consumer-ready DSL, ADSL.
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Noun
1. a generic name for digital lines that are provided by telephone companies to their local subscribers and that carry data at high speeds
(synonym) digital subscriber line
(hypernym) telephone line, phone line, telephone circuit, subscriber line, line

In Integrated Services Digital Networks (ISDN), equipment that provides full-duplex service on a single twisted metallic pair at a rate sufficient to support ISDN basic access and additional framing, timing recovery, and operational functions. (188 ) Note: The physical termination of the DSL at the network end is the line termination; the physical termination at the customer end is the network termination.

1. <communications> Digital Subscriber Line.
2.  Digital Simulation Language.
3.  Denotational Semantics Language.
(1996-10-13)