| Acronym | Meaning |
| LET | Linear Energy Transfer (in Spacecraft Power Systems) |
| IVF | In Vitro Fertilization |
| PSD | Pore Size Distribution |
| IDD | Insulin-dependent Diabetes |
| CIEF | Capillary Isoelectric Focusing |
| VCDT | Vienna Canyon Diablo Troilite |
| EMS | Electron Momentum Spectroscopy |
| EAE | Experimental Autoimmune Encephalomyelitis |
| LRS | Laser Raman Spectroscopy |
| SPI | Society For The Plastics Industry |