185 DSS definitions

Digital Signature Standard 
Decision Support System 
Defense Security Service 
Department of Social Services 
Decision Support Systems 
Digital Switched Service 
Distribution Standard System 
Digital Satellite System 
Deep Space Station 
Deep Space Stations 
Digital Small Switch 
Direct Station Selection 
Digital Switched Services 
Department of Social Security 
DASIS 
Data Systems Staff 
decision support services 
Description Schemes 
Digital Sun Sensor 
Digital Switching System 
Digitized Sky Survey 
Diplomatic Security Service 
Direct Station Select 
Direct Station Selector 
Direct Support System 
Directorate of Support Services 
Directory and Security Services 
Documentation Support Services 
Domestic Sewage Study 
Data Standards Subcommittee