| Acronym | Meaning |
| SFF | Solid Freeform Fabrication |
| PB | Particle Beam |
| TESS | Transform Method For Extinction-scattering With Spatial Resoln. |
| ROM | Regional Oxidant Model |
| CDW-EIS | Continuum Distorted Wave-eikonal Initial State (in Collisions) |
| IIXS | Ion Induced X-ray Spectroscopy |
| AQUIRE | Aquatic Information Retrieval |
| ETEC | Enterotoxigenic Escherichia Coli |
| ASPRS | American Society Of Photogrammetry And Remote Sensing |
| FR | Federal Register |