- ADSL ADSL noun [uncountable]COMPUTING TELECOMMUNICATIONS asymmetric digital subscriber line; a system that makes it possible for large amounts of digital information to be sent to computers through ordinary telephone lines at very high speed:
• The company offers high-speed ADSL internet access at reasonable rates.
* * *ADSL UK US noun [S] COMMUNICATIONS, IT► ABBREVIATION for asymmetric digital subscriber line: a technology that allows large amounts of information to be sent to computers very quickly using ordinary phone lines. ADSL is one of the main technologies that provides broadband internet access: »
a high-speed ADSL service/network»
an ADSL connection/line
Financial and business terms. 2012.