| Acronym | Meaning |
| NRO | Natural Reaction Orbital |
| FDTD | Finite-difference Time-domain |
| POSSUM | Protein Online Substructure Searching - Ullman Method |
| SWCSV | Square-wave Cathodic Stripping Voltammetry |
| XRES | X-ray Emission Spectroscopy |
| YFEGE | Yonei Free-electron-gas Exchange |
| EQA | External Quality Assessment |
| CASE | Computer Assisted Structure Elucidation |
| MQDT | Multichannel Quantum Defect Theory |
| CT | Charge Transfer |