| Acronym | Meaning |
| HRXRD | High Resolution X-ray Diffraction |
| QC-SCF | Quadratically Convergent SCF (for Closed-shell Systems) |
| HSPF | Hydrological Simulation Program-Fortran |
| SOLED | Stacked Organic Light Emitting Device |
| TNBS | Trinitrobenzene Sulfonic Acid |
| BABB | Back Arc Basin Basalt |
| PSPC | Position Sensitive Proportional Counter |
| UCEPA | Unitary Coupled Electron Pair Approximation |
| IDIMS | Interactive Digital Image Manipulation System |
| IBM | International Business Machines |