| Acronym | Meaning |
| QTPT | Quantum Thermodynamic Perturbation Theory |
| WTP | Willingness To Pay |
| FNAA | Fast Neutron Activation Analysis |
| PTC | Positive Temperature Coefficient [elec. Conducting Material] |
| EFB | Empty Fruit Bunch |
| WFA | Window Factor Analysis |
| IMPACT | Integrated Model Of Plumes And Atmosphere In Complex Terrain |
| SIMBA | Selective Inverse Multiple Bond Analysis |
| DWPO | Distorted Wave Polarized Orbital |
| VLTI | Very Large Telescope Interferometer |