| Acronym | Meaning |
| LO | Localized Orbital |
| ESQC | Elastic Scattering Quantum Chemistry |
| OCR | Optical Character Recognition |
| AFA | Abstract Factor Anal. (statistics) |
| SUMO | Small Ubiquitin-related Modifier |
| PSRA | Pulse Surface Reaction Rate Analysis |
| EDSTAC | Endocrine Disruptor Screening And Testing Advisory Committee |
| AQM | Additive Quark Model |
| VUV | Vacuum Ultraviolet |
| OMZ | Oxygen Min. Zone |