| Abbreviation | Definition |
|---|---|
| SAM | Super Accelerator Machine |
| SAND | South Accelerate, North Deccelerate |
| SASE | Self Amplification of Spontaneous Emission |
| SASER | Soud Amplification by Stimulated Emmision of Radiation |
| SATEL | Satellite |
| SAVA | Strange Attractor Variable Animator |
| SAXES | Super Advanced Xray Emission Spectrometer |
| SAXS | Small Angle X-ray Scattering |
| SAXS | small-angle xray scattering |
| SB | Small Body |
| SBDART | Santa Barbara DISORT Atmospheric Radiative Transfer |
| SBLOCA | Small-Break Loss-of-Coolant Accident |
| SBM | Spectroboscopic Method |
| SBP | Static Bottom Pressure |
| SBR | Spectral Band Replication |
| SBS | Stimulated Brillouin Scattering |
| SC | Scattering Chamber |
| SC | Schwartzschild Constant |
| SC | Stochastic Cooling |
| SCAMPI | Southern California Area Modern Physics Institute |