English abbreviations from pdmi to pdry
- PDMI (Product Data Management Initiative)
- PDMS (Poly(DiMethylSiloxane))
- PDN (Pull-Down Network)
- PDNA (Positioning Determining/Navigation Unit)
- PDNP (Proved Developed Not Producing)
- PdO (palladium oxide)
- PDOP (Position dilution of precision)
- PDP (Prescription drug plan)
- PDPM (Power Distribution Protection Module)
- PDQ (Parallel Data Query)
- PDR (a photodissociation region or photon-dominated region (both terms are used synonymously); a region in the neutral ISM in which far-ultraviolet photons dominate the heating and chemistry)
- PDRL (Permanent Disability Retirement List)
- PDRR (Program Definition and Risk Reduction)
- PDRY (People's Democratic Republic of Yemen (obsolete since 1990))