| Acronym | Meaning |
| PROC | Photochemically Reactive Organic Compound(s) |
| IF | Interstitial Free |
| SKPM | Scanning Kelvin Probe Microscopy |
| TRAP | Tartrate-resistant Acid Phosphatase |
| KDV | Korteweg-de Vries (equation For Solitons) |
| ESWTR | Enhanced Surface Water Treatment Rule |
| BASF | Badische Anilin- Und Soda-Fabrik |
| SOEH | Scaled One-electron Hamiltonian (in SCF Calcns. On Mols.) |
| IFMA | Immunofluorometric Assay |
| HASP | Harmonically Analyzed Sensitivity Profile |