| Acronym | Meaning |
| DAPS | Disappearance Potential Spectroscopy |
| PMF | Potential Of Mean Force |
| AEROS | Aerometric And Emissions Reporting System |
| ASIP | Aircraft Structural Integrity Program |
| DSMC | Direct Simulation Monte Carlo |
| UDF | Unrestricted Dirac-Fock |
| HRXPS | High Resolution X-ray Photoelectron Spectroscopy |
| AMBR | Anaerobic Migrating Blanket Reactor [for Wastewater Treatment] |
| PO-DVR | Potential Optimized-discrete Variable Representation |
| EBS | Extended Basis Set |