| Acronym | Meaning |
| HFB | Hybrid Fluidized Bed |
| RCIOSA | Reactive Classical-infinite-order-sudden Approxn. |
| BSO | Benzene Soluble Organics |
| BLIS | BACT/LAER Information System |
| SMO | Sample Management Office (US EPA) |
| ZTS | Z Transition State [z = Nuclear Charge] (method For Calcg. Isoelectronic Energy Differences And Electrostatic Potentials For A |
| EML | Environmental Mutational Load |
| MCRPA | Multiconfigurational Random Phase Approxn. |
| PET | Photoinduced Electron Transfer |
| TPN | Total Parenteral Nutrition |