| Acronym | Meaning |
| RNR | Ribonucleotide Reductase |
| ODP | Optical Deformation Potential |
| PAC | Powdered Activated Carbon |
| PM10 | Particulate Matter |
| LTMLS | Low Temperature Molecular Luminescence Spectroscopy |
| RGS | Regulator Of G-protein Signaling |
| OCOS | Orbital Charge-ordering State |
| CS | Chemical Shift |
| MP3 | Moeller-Plesset Third-order Perturbation Theory |
| BCR | Bureau Communitaire De Reference (of The CEE = Commission Of European Communities |