| Acronym | Meaning |
| VMR | Vol. Mixing Ratio |
| LHM | Longuet-Higgins-Murrell Approximation |
| HRT | Hydraulic Retention Time |
| CETO | Cartesian Exponential Type Orbital |
| PCCS | Phase-corrected Coupled-states (approxn. For Scattering Calcns.) |
| BK-DOK | Berufkrankeit Dokumentation (German Occupational Disease Documentation) |
| IBD | Ion Beam Deposition |
| CRD | Cavity Ring Down |
| BNFL | British Nuclear Fuels Laboratory |
| GDO | Generalized Diatomic Orbital |