| Abbreviation | Definition |
|---|---|
| PD | Procurement Drawing |
| PD | Program Directive |
| PD | Project Directive |
| PD | Propellant Dispersal |
| PD&RS | Payload Deployment and Retrieval Subsystem |
| PDA | Power Distribution Assembly |
| PDA | Preliminary Design Audit |
| PDA | Propellant Drain Area |
| PDAR | Program Description and Requirements |
| PDB | Performance Data Book |
| PDB | Power Distribution Box |
| PDB | Project Data Base |
| PDC | Planetary Data Center |
| PDC | Predefined Command |
| PDC | Pre-Defined Command |
| PDC | Procurement Document Change |
| PDCR | Proprietary Data Control Record |
| PDCS | Power Distribution and Control System (Subsystem) |
| Pocket Dosimeter FEMA | |
| Programmable Data Formatter |