| Acronym | Meaning |
| PFEO | Perimeter Free Electron Orbital |
| SSER | Spinless Salpeter Equation (with) Retardation |
| APIG | Antisymmetrized Product (of) Identical Geminals |
| LPIC | Low Pressure Ion Chromatography |
| LIBS | Ligand-induced Binding Sites |
| SBZ | Surface Brillouin Zone |
| GNMP | Generalized Nonlocal Model Potential |
| ASHP | American Society Of Health-System Pharmacists |
| PIMIA | Potentiometric Ionophore-modulation Immunoassay |
| LIDT | Laser-induced Damage Threshold |