| Acronym | Meaning |
| CIT | Circumstellar Imaging Telescope |
| CZCS | Coastal Zone Color Scanner |
| SAIL | Shuttle Avionics Integration Laboratory |
| PLSS | Portable Life Support System |
| PC | ParseC (usu. Pc) |
| CV | Cataclysmic Variable |
| MDSSC | McDonnell Douglas Space Systems Corp |
| PVO | Pioneer Venus Orbiter / Protivo-Vosdushniya Oborona |
| NAS | Numerical Aerodynamic Simulation |
| MITI | Ministry Of International Trade And Industry |