| Acronym | Meaning |
| IBS | Incomplete Basis Set |
| OMCVD | Organometallic Chemical Vapor Deposition |
| CDP | Cytidine 5'-diphosphate |
| NRIOSA | Nonreactive Infinite-order Sudden Approxn. |
| PO-TDSE | Periodic Orbit-time Dependent Schroedinger Equation |
| QUASIMEME | Quality Assurance Of Information For Marine Environmental Monitoring In Europe |
| SXPS | Soft X-ray Photoelectron Spectroscopy |
| HFRSPT | Hartree-Fock Rayleigh-Schroedinger Perturbation Theory |
| CCFO | Charge-charge Flux Overlap (model In Mol.-property Calcns.) |
| PAR | Photosynthetically Active Radiation |