| Acronym | Meaning |
| SUP-CI | Superdirect CI |
| EFA | Envelope Function (i.e. |
| EHC | Environmental Health Committee |
| ACPAR | Angular Correlation Of Positron Annihilation Radiation |
| BAC-MP4 | Bond-additivity-corrected Moeller-Plesset 4th-order Perturbation |
| MWI | Medical Waste Incinerator(s) |
| EDEC | Equal Distances Equal Charges Model |
| LCI-SCSCFMO | Limited Configuration Interaction Single-configuration SCF MO |
| NLC | Next Linear Collider |
| HOPC | High Osmotic Pressure Chromatography |