| Acronym | Meaning |
| SOM | Scanning Optical Microscope |
| IHF | Inhomogeneous Hartree-Fock |
| NAPL | Nonaqueous Phase Liquid |
| DTP | Diphtheria |
| CAC | Carbon Arc Cutting |
| EMS | Electromagnetic Susceptibility |
| CEFIC | Associazione Europea Dell'industria Chimica |
| ODEX | Optical Dynamics Experiments |
| MMI | Mucous Membrane Effects |
| ACP | Approximate Coupled-pair (method For Correlation-energy Calcn.) |