| Acronym | Meaning |
| SQF | Second-quantized Formulation (in Many-body Quantum Theory) |
| PSU | Practical Salinity Units |
| FFA | Flammable Fabrics Act |
| FMDF | Fixed Mirror Distributed Focus (solar Concentrator) |
| ZINDO | Zerner's Intermediate Neglect Of Differential Overlap |
| FGM | Functionally Gradient Materials |
| GLO | Gaussian Lobe Orbital |
| TDHF | Time-dependent Hartree-Fock Method |
| AFRPL | Air Force Rocket Propulsion Laboratory (USA) |
| SO-LAPW | Spin-orbit (coupling) Linearized Augmented Plane Wave |