| Acronym | Meaning |
| DEFT | Driven Equilibrium Fourier Transform |
| PIPS | Passivated Implanted Planar Silicon |
| PPE | Porcine Pancreatic Elastase |
| ECEC | Effective Cation Exchange Capacity |
| TCA | Traveling-cluster Approximation (a Generalization Of CPA For Electronic-structure Of Alloys) |
| EKMA | Empirical Kinetic Modeling Approach (in Air Pollution) |
| BRET | Bioluminescence Resonance Energy Transfer |
| FSGO | Floating Spherical Gaussian Orbital |
| VSM | Variable Screening Model (for Quasimols. And MO Correlation Diagrams) |
| LPIM | Low-pressure Injection Molding |