| Acronym | Meaning |
| PHFS | Perturbative Hartree-Fock-Slater |
| PIRSS | Polarization IR Surface Spectroscopy |
| SERA | Sequential Electrochemical Reduction Analysis |
| TEF | Toxicity Equivalency Factor |
| SPG | Sequential Product (of) Geminals |
| STODI | Slater-type Orbital-point Dipole Interaction (in Mol. Polarizability Calcns.) |
| UVAS | UV Absorption Spectroscopy |
| MLE | Molecular Layer Epitaxy |
| QUASIMEME | Quality Assurance Of Information For Marine Environmental Monitoring In Europe |
| BDAT | Best Demonstrated Available Technology |