| Acronym | Meaning |
| RFT | Reverse-flow Thermometer |
| F | Femto |
| BOD | Board Of Directors |
| CAE | Cooler |
| USC-GARP | United States Committee For GARP |
| AF | United States Air Force Affiliate |
| IDD | Interface Definition Document |
| BIT | Binary Digit (either 0 Or 1) |
| FL2 | Second Flight Model |
| IMAGES | Intermediate Model For The Annual And Global Evolution Of Interactive Systems |