| Acronym | Meaning |
| ASTROS | Automated Structural Optimization System |
| CVS | Constant Volume Sampler |
| OAP | Optical Atom Probe |
| LEMO | Lowest Empty Molecular Orbital (equivalent To LUMO) |
| IRLG | Interagency Regulatory Liaison Group |
| R&D | Research And Development |
| SSW | Solid-state Welding |
| FEP | Hexafluoropropylene-tetrafluoroethylene Copolymer |
| TSAE | Two-state Atomic Expansion (model For Atom-ion Collisions) |
| DSO-GF | Diagonal Second Order (approxn. To)-Green Function |