| Acronym | Meaning |
| IMPPT | Interaction Moeller-Plesset Perturbation Theory |
| INO | Iterative Natural Orbital |
| SRCI | Single-reference Configuration Interaction |
| CLS | Characteristic Loss Spectroscopy |
| RFLP | Restriction Fragment Length Polymorphism |
| CL | Cathode Luminescence |
| OPA | Optical Parametric Amplifier |
| GDP | Guanosine 5'-diphosphate |
| SRIXE | Synchrotron Radiation-induced X-ray Emission |
| QCL | Quantum Cascade Laser |