| Acronym | Meaning |
| AQCP | Air Quality Control Program |
| ADPT | Auger Depth Profiling Technique |
| NGCC | Natural Gas Combined Cycle |
| IKES | Ion-kinetic-energy Spectroscopy |
| AESA | Association Of Environmental Scientists And Administrators |
| MDI | Modified Dipole Interaction(model For Mol.-polarizability Calcn.) |
| RBS | Ribosome Binding Site |
| PCI-80 | Parametrized Configuration Interaction (with Parameter) 80 |
| SC-MBPT | Single-configuration Many-body Perturbation Theory |
| EBK | Einstein-Brillouin-Keller (quantization Method) |