English abbreviations from pd to pdca
- PD (Profile descent)
- PDA (Personal Digital Assistant)
- PDAD (Proposed Draft Addendum)
- PDAI (Primary Development/test Aircraft Inventory)
- PDAP (Palmer Drug Abuse Program)
- PDAS (public domain aeronautical software)
- PDAU (Physical Data Access Unit)
- PDB (Pedro Bay Airport (FAA: 4K0))
- PDBI ((telescope) Plateau de Bure Interferometer, a radio telescope)
- PDC (People's Defence Committee)
- PDCA (Plan, Do, Check, and Act)