| Acronym | Meaning |
| LIOAS | Laser-induced Optoacoustic Spectroscopy |
| PBC | Periodic Bond Chain |
| DMRG | Density Matrix Renormalization Group (quantum Calcn. Method) |
| PSES | Pretreatment Standards For Existing Sources |
| PFEO | Perimeter Free Electron Orbital |
| DMA | Dimethylarsinic Acid |
| SIGLE | System For Information On Grey Literature In Europe |
| COGS | Computer Oriented Geological Society |
| REP | Rotating Electrode Process |
| OEBR | Optical Edge Bead Removal |