| Acronym | Meaning |
| DTP | Diphtheria |
| RSPE | Rayleigh Schroedinger Perturbation Expansion |
| SCAS | Stability And Command Augmentation System |
| AAT | Atomic Axial Tensor (in Mol. Optical Properties Calcns.) |
| PBM | Photochem. Box Model |
| SSCPA | Single-site Coherent-potential Approximation |
| IARC | International Agency For Research On Cancer |
| NEDOR | Nuclear Electron Double Resonance |
| HFET | Highway Fuel Economy Test |
| IISI | International Iron And Steel Institute |