| Acronym | Meaning |
| WHO | World Health Organization |
| WRITE | Waste Reduction Innovative Technology Evaluation (US EPA) |
| QPEN | Quantum-mech. Potential (based On Interactios Of) Electrons (and) Nuclei |
| XC | Exchange-coulomb Potential |
| NOI | Notice Of Intent |
| MCLR | Multiconfigurational Linear Response (an MC-SCF Method) |
| FFM | Finite Field Method (in Mol. Polarizabilities Calcns.) |
| HGHR | Human Growth Hormone Receptor |
| BAC-MP4 | Bond-additivity-corrected Moeller-Plesset 4th-order Perturbation |
| ASCE | American Society Of Civil Engineers |