| Acronym | Meaning |
| CHIRP | Core-hole Initiated Relaxation Process (in Ionic Crystals) |
| HSG | Human Salivary Gland |
| HLW | High-Level Waste |
| LTE | Local Thermodn. Equil. |
| NPO | National Program Office |
| EIQ | Emission Inventory Questionnaire |
| ELV | End-of-life Vehicle |
| IMOMM | Integrated Molecular Orbital Molecular Mechanics [MO Modeling] |
| RESOLVE | Research On Operations Limiting Visual Extinction |
| MOMO | Maximum Overlap Molecular Orbital |