| Acronym | Meaning |
| SEMPI | Singly Excited Modified Perturbation Theory |
| STOAT | Sewage Treatment Operation And Analysis Over Time [model] |
| PAPVD | Plasma-assisted Physical Vapor Deposition |
| ZEKE | Zero Electron Kinetic Energy |
| TFA | Target Factor Analysis |
| BIXE | Bombardment-induced X-ray Emission |
| FOCAL | Francais Ocean Et Climat Dans L'Atlantique Equatorial |
| QDM | Quadrature Discretization Method (in Electron Transport Properties Calcns.) |
| RODS | Records Of Decision System |
| MSC | Multiplicative Scatter Correction |