| Acronym | Meaning |
| LT | Local Time |
| ARR | Association For Radiation Research |
| ADI | Acceptable Daily Intake |
| RFT | Reverse-flow Thermometer |
| NPSNET | NASCOM Packet Switched Subnetwork |
| CB | Meteorological Symbol |
| GPRA | Government Performance And Results Act |
| EOSP | Earth Observing Scannign Polarimeter |
| FB | Funds Budgeted |
| PRF | Pulse Repetition Frequency |