| Acronym | Meaning |
| ALS | Alternating Least Squares |
| PTCA | Percutaneous Transluminal Coronary Angioplasty |
| WAO | Wannier Atomic Orbital |
| SCG | Slow Crack Growth |
| ABA | Acid-base Account [related To Acid-forming Potential] |
| MERT | Medical Emergency Response Team |
| OPGF | One-particle Green Function |
| HWLT | Hazardous Waste Land Treatment |
| PSSCF | Pseudo SCF |
| TNF | Tumor Necrosis Factor |