| Acronym | Meaning |
| STM | Symptom Tree Model |
| ISHOW | Information System For Hazardous Organics In Water |
| CSVC | Computer System Validation Committee |
| ADAP | Angular Distribution Of Annihilating Photons |
| MODULUS | Methods Of Determining And Understanding Light Elements From Unequivocal Stable Isotope Compositions |
| OCE-DF | One-center Expansion Dirac-Fock |
| ROS | Reactive Oxygen Species |
| EPTC | Extraction Procedure Toxicity Characteristic |
| NBII | National Biological Information And Infrastructure |
| TGVBA | Target Generalized Valence Bond Approximation |