| Acronym | Meaning |
| PPE | Personal Protective Equipment |
| IMO | Intermolecular Mol. Orbital |
| HEN | Heat Exchanger Network |
| LKKR | Layer Korringa-Kohn-Rostoker (in Interface Electronic Structures) |
| HAZOP | Hazard And Operability Study |
| REPA | Resource And Environmental Profile Analysis |
| BDH | British Drug House |
| MOX | Mixed Oxide |
| EDXA | Energy-dispersive X-ray Analysis |
| IPEM | Ion-photon Emission Microscopy |