| Acronym | Meaning |
| DWTM | Distorted Wave T-matrix (for Electron-atom Scattering) |
| PWETF | Plane-wave Electronic Translational Factor (ion-atom Collisions) |
| TSD | Technical Support Document |
| APPI | Atmospheric Pressure Photoionization |
| GUE | Gaussian Unitary Ensemble (of Random Matrixes In Quantum-transport Studies) |
| SERDP | Strategic Environmental Research And Development Program |
| TSDW | Torsional Spin Density Wave |
| DYANA | Dynamics Algorithm For NMR Applications |
| IFSEM | International Federation Of Societies For Electron Microscopy |
| MOX | Mixed Oxide |