| Acronym | Meaning |
| CUTLASS | Co-operative UK Twin-Located Auroral Sounding System |
| AEMA | Auger Electron Microanalysis |
| GRWA | Generalized Rotating-wave Approxn. (in Energy Level Calcns.) |
| MNDO | Modified Neglect Of Differential Overlap |
| BCM | Bond Charge Model (in Force Constants Calcn.) |
| XAS | X-ray Absorption Spectroscopy |
| ECVAM | European Center For The Validation Of Alternative Methods |
| BOA | Bidirectional Orbital Approximation (in Valence Bond Theory) |
| KKT | Kramers-Kronig Transformation |
| DDP | Didecyl Phthalate |