| Acronym | Meaning |
| PDM | Pulse Duration Modulation |
| AFPEO/ST | Air Force Programs Executive Officer |
| IOS | Interplanetary Scintillation |
| CBL | Computer-based Learning |
| NETCDF | Network Common Data Form |
| NIRNS | National Institute For Research In Nuclear Science |
| AFIS | Automated Fingerprint Identification System |
| WHOI | Woods Hole Oceanographic Institute |
| AIMS | Advanced Information Management Systems |
| IUPAP | International Union Of Pure And Applied Physics |