| Acronym | Meaning |
| FKO | Franz-Keldish Oscillations |
| PAFC | Phosphoric Acid Fuel Cells |
| ERCIM | European Research Consortium For Informatics And Mathematics |
| ROSAT | Roentgen Satellite |
| DET | Direct Nonradiative Electronic Energy Transfer |
| TRAP | Tartrate-resistant Acid Phosphatase |
| CIV | Critical Ionization Velocity (ionosphere) |
| HCA | Human Carbonic Anhydrase |
| WAP | Waste Analysis Plan |
| HCPT | Hard-core Perturbation Theory |