| Acronym | Meaning |
| MP3 | Moeller-Plesset Third-order Perturbation Theory |
| CONTRAST | Connectivity Tracing Assignment Tools |
| IC | Ion Chromatography |
| NHEJ | Nonhomologous End Joining |
| ATIR | Attenuated Total Reflectance Infrared |
| MRD-CI | Multireference Determinant Configuration Interaction |
| AASD | Anaerobic Activated Sludge Digestion |
| TBBM | Tight-binding Bond Model |
| CM | Configuration Mixing |
| SPELEEM | Spectroscopic PhotoEmission And Low Energy Electron Microscope |