| Acronym | Meaning |
| SCR | Selective Catalytic Reduction |
| SRT | Sludge Or Solids Retention Time |
| LEISS | Low-energy Ion-scattering Spectroscopy |
| SLG | Strictly Localized Geminal |
| CEAS | Coulometric Electrode Array System |
| CROW | Contained Recovery Of Oily Wastes |
| CBER | Center For Biologics Evaluation And Research |
| MR-MP | Multireference Moeller-Plesset (perturbation Theory) |
| BOO | Bond Orientational Order |
| CBG | Corticosteroid Binding Globulin |