| Acronym | Meaning |
| DEXA | Dual Energy X-ray Absorptiometry |
| QCMD | Quantum-classical Mol. Dynamics |
| TIWSLS | Time-independent Wave Packet Schroedinger (and) Lippmann-Schwinger (equation) |
| EELFS | Extended-energy-loss Fine-structure |
| PIES | Penning Ionization Electron Spectroscopy |
| FIOH | Finnish Institute Of Occupational Health |
| PAI | Pesticide Active Ingredient |
| SCMFT | Self-consistent Mean-field Theory |
| ISAAC | International Study Of Asthma And Allergies In Childhood |
| PET | Petrol. Elementary Tools (computer Program) |