| Acronym | Meaning |
| XRCF | X-ray Calibration Facility |
| PWFB | Plane-wave First Born |
| ALAPO | Association Of Local Air Pollution Control Officers |
| OGWDW | Office Of Ground Water And Drinking Water |
| UGF | Unitary-group Formulation (in Many-body Quantum Theory) |
| ECCI | Electron Channeling Contrast Imaging |
| DCP | Dual Circular Polarization |
| EOM | Equations Of Motion Method (green's Function) |
| RAP | Remedial Action Project Or Plan |
| ACE-ASIA | Aerosol Characterization Expts.-Asia |