| Acronym | Meaning |
| BWPT | Brillouin-Wigner Perturbation Theory |
| NTTC | National Technical Transfer Center |
| CEEM | Center For Energy And Environmental Management |
| LKKR | Layer Korringa-Kohn-Rostoker (in Interface Electronic Structures) |
| THFA | Target Hartree-Fock Approximation |
| CHA | Concept Hazard Analysis |
| IAVCEI | International Association Of Volcanology And Chemistry Of The Earth's Interior |
| LFT | Liver Function Test |
| TFT | Thin Film Transistor |
| SQRD | Square Root Darwin Term (correction To T And V Operator) |