| Acronym | Meaning |
| EFC | European Federation Of Corrosion |
| MTTP | Maximum Total Trihalomethane Potential |
| TPE | Thermoplastic Polyester Elastomer |
| ESDN | Electron Stimulated Desorption Of Neutrals |
| CRS | Controlled Release Society |
| GPR | Ground-penetrating Radar |
| APN | Aminopeptidase N |
| BLMO | Boys Localized Molecular Orbital |
| PB | Particle Beam |
| PMP4 | (spin) Projected Moeller-Plesset Fourth-order (perturbation Theory) |