| Abbreviation | Definition |
|---|---|
| SFAD | Soya Fatty Acid Distillate |
| SFC | Spot Forming Cell |
| SFCC | Saudi Formaldehyde Chemical Company |
| SFM | Single Fluid Model |
| SFPM | Suspended Fine Particulate Matter |
| SFX | SpiroFluoreneXanthene |
| Sg | Seaborgium |
| SG | Spheroidal Graphite |
| SG | Strat Gas |
| SGC | Soluble Guanylyl Cyclase |
| SGCE | School of Green Chemistry and Engineering |
| SGIron | Spheroidal Graphite Iron |
| SgrS | Sugar transport-related sRNA |
| SGS | Simple Graphics System |
| SHC | Synthetic HydroCarbon |
| SHOP | Shell Higher Olefin Process |
| SHS | Self-propagating High-temperature Synthesis |
| SHU | Scoville Heat Unit |
| SI | Saturation Index |
| Si | Silicon |