| Abbreviation | Definition |
|---|---|
| SS | Solid Solution |
| SSA | Succinic SemiAldehyde |
| SSA | SulphoSalicylic Acid |
| SSCI | Solid State Chemical Information |
| SSCP | Saturated Stoichiometric Combustion Product |
| SSCU | State and Structural Chemistry Unit |
| SSLA | Small Sealed Lead Acid |
| SSLB | Short Strong Low-Barrier |
| SSMC | Solid State and Materials Chemistry |
| SSP | Single SuperPhosphate |
| SSP | Steady-State Plasma |
| SSP | Stub Scion Pairs |
| SSPG | Steady-State Plasma Glucose |
| SSRIs | Selective Serotonin Reuptake Inhibitors |
| SSS | Static Spherically Symmetric |
| SSWG | Salt Science Working Group |
| SSZ | Studies Of The Synthesis Of Zeolite |
| ST | Schwinger Terms |
| STA-1 | University of St Andrews-1 |
| STA-2 | University of St Andrews-2 |