| Acronym | Meaning |
| SCTB | Self-consistent Tight-binding (in Electronic Structure) |
| RODTOX | Rapid Oxygen Demand And Toxicity Tester |
| COLOC | Correlation Spectroscopy For Long-range Couplings |
| ORAM | Optical Random Access Memory |
| ESAD | Electron-stimulated Associative Desorption |
| DOP | Dissolved Organic Phosphorus |
| AIRS | Atmospheric Information Retrieval System |
| HTP | High Temperature And Pressure |
| MIOSA | Modified (rotational) Infinite Order Sudden Approxn. |
| SCIA | Semiclassical Impact Approxn. (in Ionizing At. And Mol. Collision Calcns.) |