| Acronym | Meaning |
| OSM | Overlapping Sphere Model |
| CHIGFET | Complementary Heterostructure Insulated Gate Field Effect Transistor |
| AMN | Alkali Metal Nitrite(s) |
| MIRIS | Multiple Internal Reflection IR Spectroscopy |
| ISIS | Image-selected In Vivo Spectroscopy |
| GIWA | Global International Waters Assessment |
| LSND | Liquid Scintillator Neutrino Detector |
| RLV | Reusable Launch Vehicles (aeronautics) |
| CMASN | Calcium Oxide-magnesia-alumina-silica-sodium Oxide |
| RFD | Reference Dose |