| Acronym | Meaning |
| IMPPT | Interaction Moeller-Plesset Perturbation Theory |
| APPM | Atomic Parts Per Million |
| TIRFM | Total Internal Reflection Fluorescence Microscopy |
| DEMA | Diesel Engine Manufacturers Association |
| DSA | Dynamic Simulated Annealing (for Electronic Structure In Liq.metals) |
| CASR | Chemical Activity Status Report |
| CHIEF | Clearinghouse For Inventories And Emission Factors |
| TRIGA | Training, Research, Isotopes, General Atomic (nuclear Fuel) |
| AP | Appearance Potential |
| RBCODUR | Readily Biodegradable Chemical Oxygen Demand Uptake Rate |