| Acronym | Meaning |
| PEC | Predicted Environmental Concentration |
| CAS-CI | Complete Active Space-configuration Interaction |
| SDFFF | Sedimentation Field Flow Fractionation (particle Analysis) |
| MAGE | MicroArray And Gene Expression |
| ATD | Atmospheric Technology Division |
| PPBA | Plane-wave Plane-wave Born Approximation |
| CBD | Cellulose-binding Domain |
| 2DEG | Two-dimensional Electron Gas |
| IAM | Internal Axis Method (in Calcns. Of Rotational Excitation In Atom-mol. Collisions) |
| NRO | Natural Reaction Orbital |