| Acronym | Meaning |
| IVO | Improved Virtual Orbital |
| IPA | International Pharmaceutical Abstracts |
| MAPW | Modified Augmented Plane Wave |
| OSHRC | Occupational Safety And Health Review Commission |
| NATA | National Air Toxics Assessment |
| MQES | Metastable-quenched Electron Spectroscopy |
| BMP | Biochemical Methane Potential |
| FPLMTO | Full-potential Linearized Muffin-tin Orbital |
| ISIS | Image-selected In Vivo Spectroscopy |
| CSVC | Computer System Validation Committee |