| Acronym | Meaning |
| EPBRE | External Pressure Balanced Ref. Electrode |
| LEEPS | Low Energy Electron Point Source |
| SPIPES | Spin Polarized Inverse Photoemission Spectroscopy |
| ICS | Inhaled Corticosteroid |
| GVB-CI | Generalized Valence Bond-configuration Interaction (wave Function) |
| ASO | Atomic Spin Orbital |
| RADW | Rotationally-adiabatic Distorted-wave |
| PHE | Potentially Harmful Element |
| BATNEEC | Best Available Technology Not Entailing Excessive Cost |
| SWMU | Solid Waste Management Unit(s) |