| Acronym | Meaning |
| MCPF+R | Modified Coupled-pair Functional (method With) Relativistic (correction) |
| NDSC | Network For The Detection Of Stratospheric Change |
| NHRL | Northern Hemisphere Reference Line |
| DIDMOAD | Diabetes Insipidus |
| PWETF | Plane-wave Electronic Translational Factor (ion-atom Collisions) |
| PWB | Printed Wiring Board |
| OCEPA | Office Of Communications |
| SOM | Soil Organic Matter |
| NEDB | National Exposure Database (HSE) |
| VOIP | Valence Orbital Ionization Potential |