| Acronym | Meaning |
| PDR | Program Design Review |
| NO | Normally Open |
| PLSL | Propellants And Life Support Laboratory |
| MAPOLE | Magnetic Dipole Spark Transmitter |
| BP | Cycle |
| VDI | Vertical Display Indicator |
| T&E | Test And Evaluation |
| FMO | Flight Medical Officer |
| EPD | Emergency Procedures Document |
| TDM | Time-Division Multiplexing (Multiplexer) |