| Abbreviation | Definition |
|---|---|
| SSBD | Steady State Beam Deflection |
| SSC | Superconducting Super Collider |
| SSH | Spatial-Spectral Holographic |
| SSP | Spectroscopy Society of Pittsburgh |
| SSP | Spontaneous Sound Phenomena |
| SSP | Static Strength Prediction |
| SSPG | Solid State Physics Group |
| SSPL | Solid State Physics Laboratory |
| SSPP | Static Strength Prediction Program |
| SSS | Sub Surface Scattering |
| SSS | Sub-Surface Scatering |
| SSS | Symmetric Steady State |
| SST | Steady State Temperature |
| ST | Spherical Tokamak |
| ST | State Transformation |
| ST&A | Space Technology and Aeronautics |
| STAR | Solenoidal Tracker At RHIC (Relativistic Heavy Ion Collider) |
| STARE | Scandinavian Twin Auroral Radar Experiment |
| STARS | Space-Time Analysis of Regional Systems |
| STASA | Scientific and Technical Acronyms, Symbols, and Abbreviations |