| Acronym | Meaning |
| PISAM | Photon-induced Scanning Auger Microscope |
| JSGA | Japanese Spaceguard Association |
| DAST | Diethylaminosulfur Trifluoride |
| FIIA | Flow Injection Immunoassay |
| DAF | Dissolved Air Flotation |
| RCI | Relativistic Configuration Interaction |
| IAMAP | International Association Of Meteorology And Atmospheric Physics (ICSU) |
| CCPA | Cemented Carbide Producers Association |
| EID | Electron Impact Desorption |
| NVFEL | National Vehicle And Fuel Emissions Laboratory |