| Acronym | Definition | 
|---|
| PTSS➣Post Traumatic Stress Syndrome | 
| PTSS➣Posttraumatische Stressstoornis (Dutch: Post Traumatic Stress Disorder) | 
| PTSS➣Precision Tracking Space System (US DoD) | 
| PTSS➣Precision Tracking Space Sensor (US DoD) | 
| PTSS➣Post-Traumatic Symptom Scale | 
| PTSS➣Postoperative Toxic Shock Syndrome | 
| PTSS➣Procurement, Travel and Shipping Section (UN) | 
| PTSS➣Public Telephone Switching System |