DuckCorp Dico

Found one definition

1.                 From German - English Ding/FreeDict dictionary ver. 1.9-fd1:
                   
   
   
                   
                     
   DSL /dˌeːˌɛsˈɛl/ <neut, n, sg>
    [telco.] DSL <n>
            Note: originally: digital subscriber loop, nowadays: digital subscriber line
            Note: Digitaler Teilnehmeranschluss