| Acronym | Meaning |
| ETS | External Transcribed Spacer |
| FLMS | Femtosecond Laser Mass Spectrometry |
| WATOC | World Association Of Theoretically Oriented Chemists |
| NCEA | National Center For Environmental Assessment |
| BJH | Bopp-Jancso-Heinzinger (potential Function) |
| TBLMTO | Tight-binding Linear (combination Of) Muffin-tin Orbitals |
| FHNC | Fermi Hypernetted Chain Method (in Quantum Statistics) |
| TOCOEN | Toxic Organic Compounds In The Environment (research Project In Czechoslovakia) |
| LMCT | Ligand-to-metal Charge Transfer |
| TS | Transition State |