| Acronym | Meaning |
| UCS | Unconfined Compressive Strength |
| CPOM | Coarse Particulate Organic Matter |
| DSCCR | Diffractive Sudden-closed Coupled Rotation (for Mol.-surface Scattering Calcns.) |
| PAES | Positron-induced Auger Electron Spectroscopy |
| I AND C | Instrumentation And Control |
| FFEM | Freeze-fracture Electron Microscopy |
| ICAM-1 | Intercellular Adhesion Molecule-1 |
| ISV | Initial Settling Velocity |
| ROG | Reactive Organic Gas |
| SCLO | Self-consistent Local Orbital |