| Acronym | Meaning |
| ISES | International Solar Energy Society |
| WDI | World Drug Index |
| HMSA | Hybrid Mean Spherical Approximation |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| MRE | Metal Responsive Element |
| SLS | Selective Laser Sintering |
| GPF | Gaussian Polarization Function |
| BOP | Basic-O Process |
| AEMA | Auger Electron Microanalysis |
| SDF | Stromal Cell-derived Factor |