| Acronym | Meaning |
| BO | Born Oppenheimer |
| QLDA | Quasilocal Density Functional Approxn. |
| MOSFET | Metal Oxide Semiconductor Field Effect Transistor |
| ARO | Analytical Radial Orbital |
| GEWEX | Global Energy And Water Cycle Experiment |
| OLDA | Ordinary Linear Discriminant Analysis |
| UMO | Unmodified Molecular Orbital |
| EPTC | Extraction Procedure Toxicity Characteristic |
| IRMPA | Infrared Multiphoton Absorption |
| BSPT | Blizzard Santry Perturbation Theory |