| Acronym | Meaning |
| DWIOS | Distorted Wave Infinite Order Sudden Approximation |
| CHEMFET | Chem. Modified Field Effect Transistor |
| CPMAS | Cross Polarization Magic Angle Spinning (C-13 NMR) |
| VAM | Valid Analytical Measurement |
| WWM | Wigner-Weyl-Moyal (formalism In Quantum Mechanics) |
| ESRIN | European Space Research Institute |
| PVO | Pseudovalence Orbital |
| ATM | Airborne Thematic Mapper |
| SF-PNM | Step Function Perturbative Numerical Method |
| WWTP | Wastewater Treatment Plant Or Process |