| Acronym | Meaning |
| PPI | Proton Pump Inhibitor |
| IBS | Incomplete Basis Set |
| AL:PE | Acidification Of Mountain Lakes: Paleolimnol. And Ecol. |
| MSIP | Magnetron Sputtering Ion Plating |
| LWR | Locally Weighted Regression |
| ILS | Ionization Loss Spectroscopy |
| BEST | Bare Essentials Of Surface Transfer |
| SRF | State Revolving Fund (module Of GICS) |
| QSBR | Quant. Structure-biodegrdn. Relationships |
| XLPE | Crosslinked Polyethylene |