| Acronym | Meaning |
| QDO | Quantum-defect Orbital (theory) |
| LSA | Linear Superposition Approximation |
| PVAC | Poly(vinyl Acetate) |
| ERDAS | Earth Resource Data Analysis System |
| TDCHF | Time-dependent Coupled Hartree-Fock |
| CFS | Chronic Fatigue Syndrome |
| LPO | Lipid Peroxidation |
| LSW | Localized Spherical Wave (in Electronic Structure Calcns.) |
| PBA | Poly(butyl Acrylate) |
| MEMS | Microelectromechanical Systems |