Shared Screening Module 
Source Specific Multicast 
Sector Search Mode 
Support System Module 
surface-to-surface missile 
Single Segment Message 
Support Systems Module 
Surface to Surface Missile 
Shared Scalable Memory 
Shuttle Support Manager 
Simplified Storage Management 
Software Subcontract Management 
Spacecraft Systems Monitor 
Squadron Sergeant Major 
Same-sex marriage 
Sample Support Module 
Satellite System Monitor 
Second Surface Mirror 
Service Session Manager 
Set System Mask 
Signaling and Session Manager 
Spacecraft Subsystems Monitoring 
Special Safeguarding Measures 
Special Sensor Magnetometer 
Special Sensor Microwave 
Spread Spectrum Modulation 
spread-spectrum modulation 
superficial spreading melanoma 
Support Service Module 
Suspension Steering Module