| Acronym | Meaning |
| TS | Transition State |
| MIS | Management Information System (OSHA) |
| LR-SCF | Low-rank SCF |
| DOA | Dioctyl Adipate |
| NIPDWR | National Interim Primary Drinking Water Regulations |
| LEP | Local Electron Pair (model For Intra- & Intermol. Interactions) |
| TRO | Tubular Reverse Osmosis |
| PQC | Piezoelectric Quartz Crystal |
| IMPPT | Interaction Moeller-Plesset Perturbation Theory |
| EUVL | Extreme Ultraviolet Lithography |