Source : WordNet®

IIS
     n : the most notorious and possibly the most important arm of
         Iraq's security system; "the Iraqi Mukhabarat has been
         involved in numerous terrorist activities" [syn: {Iraqi
         Intelligence Service}, {Iraqi Mukhabarat}]

Source : Free On-Line Dictionary of Computing

IIS
     
        1.  {Internet Information Server}.
     
        2.  {Idealized Instruction Set}.
     
        (1999-08-26)