NASA Abbreviations and Acronyms

1. PDB
   Project Database
2. PDC
   Predefined Command
3. PDC
   Procurement Document Change
4. PDCR
   Proprietary Data Control Record
5. PDCS
   Power Distribution and Control System (subsystem)
6. PDF
   Programmable Data Formatter
7. PDF
   Portable Date File format
8. PDF
   Pocket Dosimeter Fema
9. PDH
   Ppcket Dosimeter-High
10. PDH
    Pockex Dosimeter High
11. PDH
    Pocket Dosimeter-high
12. PDI
    Payload Deployment and Retrieval System
13. PDI
    Payload Data Interleaver
14. PDL
    Pocket Dosimeter-Low
15. PDL
    Procedure Distribution List
16. PDL
    program design language
17. PDL
    Ponce de Leon
18. PDM
    Primary Deployment Mechanism
19. PDM
    Primary Drive Motor
20. PDM-FM
    Pulse Duration Modulation/frequency Modulation

Last updated: May 6, 2025 — Total entries: 14,020