| Acronym | Meaning |
| ERL-C | Environmental Research Laboratory Corvallis |
| STOAT | Sewage Treatment Operation And Analysis Over Time [model] |
| SUV | Small Unilamellar Vesicle |
| JI | Joint Implementation [with Regard To Greenhouse Gas Emission Redn.] |
| APTI | Air Pollution Training Institute |
| SNPS | Space Nuclear Power System |
| CD | Circular Dichroism |
| SCUVS | Stratospheric Climatology Using UV/Visible Spectroscopy |
| ELG | Emission-line Galaxy |
| SCSRC | Solids Contact Slurry Recirculating Clarifier(s) |