| Acronym | Meaning |
| OSTE | One-step Temper Embrittlement |
| IPMI | International Precious Metals Institute |
| HPTTD | High-performance Thermophilic Two-phase Digestion |
| COD | Chemical Oxygen Demand |
| ACMG | American College Medical Genetics |
| SDME | Single-drop Microextraction |
| IESWTR | Interim Enhanced Surface Water Treatment Rule |
| LEAP | Local-electrode Atom Probe |
| ANA | Adiabatic Nuclei Approximation (in Electron-mol. Scattering) |
| STM | Symptom Tree Model |