Definition of DSL abbreviation from the Oxford Advanced Learner's Dictionary

 

DSL

 abbreviation
abbreviation
BrE BrE//ˌdiː es ˈel//
 
; NAmE NAmE//ˌdiː es ˈel//
 
(computing)
 
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digital subscriber line (a way of sending electronic data at high speed along ordinary telephone lines, used for supplying the Internet to homes, businesses, etc.)
See the Oxford Advanced American Dictionary entry: DSL