| Acronym | Meaning |
| AIDA | Arecibo Initiative With Dynamics Of The Atmosphere |
| ASEP | Accident Sequence Evaluation Program |
| LDR | LIDAR |
| NPOP | NASA Polar Orbiting Platform |
| AFB | Air Force Base |
| EGP | Exterior Gateway Protocol |
| JCAE | Joint Committee On Atomic Energy |
| ARS | American Rocket Society |
| ESDI | Enhanced Samll Device Interface |
| LHS | Left-hand Side |