| Acronym | Meaning |
| MIP | Millions Of Instructions Per Second |
| LAM | Limited-area Model |
| IGC | International Geophysical Cooperation |
| WSP | Winter Storm Program |
| APC | Ammonium Perchlorate |
| IRLS | Interrogation & Reading Location System |
| IRIG | Inertial Rate (MIT) Or Reference (NASA) Integrating Gyroscope |
| MRB | Materials Review Board |
| IIPS | Interactive Information And Processing Systems [for Meteorology |
| AIS | Accumulator Injection System |