| Acronym | Meaning |
| GE-PIXE | Grazing-exit Particle-induced X-ray Emission |
| BLP | Bragg Light Profile |
| GEML | Gene Expression Markup Language |
| TEMIS | Total Emissions Model For Integrated Systems |
| AMPD | AMP Deaminase |
| GAW | Global Atmospheric Watch |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| CCE | Counterflow Centrifugal Elutriation |
| MALLS | Multiple-angle Laser Light Scattering |
| CPBE | Coulomb-projected Born Approxn. With Exchange |