| Acronym | Definition |
|---|
| PDDA➣Poly Diallyldimethylammonium Chloride (chemical) |
| PDDA➣Power Driven Decontamination Apparatus |
| PDDA➣Pacific Detroit Diesel Allison (Kent, WA) |
| PDDA➣Parallel Deadlock Detection Algorithm |
| PDDA➣Participatory Direct Democracy Association (Canada) |
| PDDA➣Post-Disaster Damage Assessment |
| PDDA➣Parallel and Distributed Dynamic Analyzer (software) |
| PDDA➣Physicians Drug and Diagnosis Audit |