| Acronym | Meaning |
| OBK2 | Second-order Oppenheimer-Brinkman-Kramers |
| OBK | Oppenheimer-Brinkman-Kramers (approxn. In Atom-ion Electron-exchange Calcns.) |
| SMILES | Simplified Molecular Input Line Entry System |
| OBIC | Optical Beam Induced Current |
| OBK3 | Third-order Oppenheimer-Brinkman-Kramers |
| FLIP | FLICE-inhibitory Protein |
| PAF | Platelet Activating Factor |
| MC-ICPMS | Multiple-collector Inductively Coupled Plasma-mass Spectrometry |
| STOM | Scanning Tunneling Optical Microscopy |
| TDTF | Time-dependent Thomas-Fermi |