| Acronym | Meaning |
| GVVPT | Generalized Van Vleck Perturbation Theory |
| TBLMTO | Tight-binding Linear (combination Of) Muffin-tin Orbitals |
| CBP | Combustion By-Product (from Incineration) |
| SPLEEM | Spin-polarized Low-energy Electron Microscopy |
| AFBR | Anaerobic Fluidized-bed Reactor |
| AAV | Adeno-associated Virus |
| DWM | Distorted Wave Method |
| PFBC-CC | Pressurized Fluidized-bed Combustion/combined Cycle (of Coal) |
| IOA | International Ozone Association |
| IDEAL | International Digital Electronic Access Library |