Source : WordNet®

Department of Defense
     n : the federal department responsible for safeguarding national
         security of the UnitedStates; created in 1947 [syn: {Defense
         Department}, {United States Department of Defense}, {Defense},
          {DoD}]

Source : Free On-Line Dictionary of Computing

Department of Defense
     
         (DoD) The US military body responsible for sponsoring
        many software engineering standards.
     
        (1996-05-29)