| Acronym | Meaning |
| NASD | National Ag Safety Database |
| PEC | Predicted Environmental Concentration |
| CROWN | Combines Rotation With Nutation |
| SSCAD | Spherical Self-consistent Atomic Deformation |
| OIRM | Office Of Information Resources Management |
| XSAD | X-ray Small Angle Diffraction |
| FRS | Fragment Separatorpar |
| NDWBA | Normalized Distorted-wave Born Approximation |
| SOP/EA | Split-operator Propagator (for) Electronically Adiabatic (phenomena) |
| MARIS | Mississippi Automated Resource Information System |