| Acronym | Meaning |
| REFET | Ref. Field Effect Transistor |
| FCPC | Full-core Plus Correlation (calcn. Method) |
| ECP-CPP | Effective Core Potential (augmented By)-core Polarization Potential |
| FFTB | Final Focus Test Beam |
| ANPP | 4-azido-2-nitrophenyl Phosphate |
| VCSEL | Vertical Cavity Surface Emitting Laser |
| SHOA | Second-harmonic Optical Activity |
| ELSA | Electron Stretcher Accelerator |
| CNO | Constrained Nonorthogonal Orbital (algorithm) |
| MFC | Multiconfigurational Frozen Core (approxn. For Electron-atom Scattering Calcns.) |