| Acronym | Meaning |
| MAPS | Measurement Of Air Pollution From Satellites |
| ICVT | Improved Canonical Variational Theory |
| RMP | Relativistic Model Potential |
| TMS | Transmission Moessbauer Spectroscopy ~ ~ |
| DWS | Debris Washing System |
| RMTO | Relativistic Muffin-tin Orbital |
| LAO | London Atomic Orbital |
| PDDO | Projection Of Diatomic Differential Overlap |
| IPC | International Patent Classification |
| ISO | International Organization For Standardization |