| Acronym | Meaning |
| FIAM | Free Ion Activity Model |
| NADP | National Atmospheric Deposition Program |
| HWGTF | Hazardous Waste Groundwater Task Force |
| BAIR | Biological Atlas Of Insulin Resistance |
| CTZ | Coastal Transition Zone |
| FPLMTO | Full-potential Linearized Muffin-tin Orbital |
| ESEP | Exact Static Exchange (plus) Polarization (potential) |
| PCL | Phase Conjugate Laser |
| DZRS | Double Zeta Roos-Siegbahn (wave Functions) |
| MAT | Magic Angle Turning |