| Acronym | Meaning |
| RIOSA | Reactive Infinite-order Sudden Approxn. |
| ACM | Adiabatic Channel Model |
| CPWR | Coupled Plasmon-waveguide Resonance |
| QCISDT | Quadratic CI (with) Single (and) Double (and) Triple (excitations) |
| XPD | X-ray Photoelectron Diffraction |
| BTEM | Band Target Entropy Minimization |
| GFC | Gel Filtration Chromatography |
| BEES | Ballistic Electron Emission Spectroscopy |
| CAEAL | Canadian Association For Environmental Analytical Laboratories |
| INDO/S | Intermediate Neglect Of Differential Overlap Screened Approxn. |