| Acronym | Definition |
|---|
| PDSI➣Palmer Drought Severity Index |
| PDSI➣Pinnacle Data Systems Inc (Columbus, Ohio) |
| PDSI➣Petascale Data Storage Institute (Carnegie Mellon University; Pittsburgh, PA) |
| PDSI➣Principal Decision Systems International (Irvine, CA) |
| PDSI➣Project Development Services, Inc. (Atlanta, GA) |
| PDSI➣Personnel Development Skill Identifier (US Army) |
| PDSI➣Project Development Skill Identifier |
| PDSI➣Primeworld Digital Systems Inc. (Smart Communications Inc.; Philippines) |
| PDSI➣Physical Disabilities & Sensory Impairment |
| PDSI➣Palladium Silicide |
| PDSI➣Portland Downtown Services, Inc. (Oregon) |
| PDSI➣Phelps Dodge Sierrita, Inc. (Green Valley, AZ) |
| PDSI➣Professional Development Skill Identifier |
| PDSI➣Personal Density Scanning Imager (diagnostic radiology) |
| PDSI➣Professional Development for School Improvement (teacher training) |
| PDSI➣Project Design Services, Inc. (various locations) |
| PDSI➣Parkinson's Disease Symptom Inventory (quality of life study) |
| PDSI➣Proved Developed Shut In (hydrocarbon reserves) |
| PDSI➣Professional Defense Solutions International (The Woodlands, TX) |