| Acronym | Definition |
|---|
| PDH➣Pyruvate Dehydrogenase Complex (enzymes) |
| PDH➣Plesiochronous Digital Hierarchy |
| PDH➣Professional Development Hours (continuing education) |
| PDH➣Propane Dehydrogenation |
| PDH➣Pretty Damn Hot |
| PDH➣Private Dwelling House (mortgages) |
| PDH➣Pound-Drever-Hall (laser frequency stabilization technique) |
| PDH➣Product Data Hub (software) |
| PDH➣Plesio-Synchronous Digital Hierarchy |
| PDH➣Pairing Diffie Hellman |
| PDH➣Performance Data Helper |
| PDH➣Procuraduría de los Derechos Humanos |
| PDH➣Procuraduria de Derechos Humanos (Spanish) |
| PDH➣Performance Data Helper (Microsoft) |
| PDH➣Pain Drug Hypnosis |
| PDH➣Pennsylvania Department of Health |
| PDH➣Probability of Damage given a Hit |
| PDH➣Primary Digital Hierarchy |
| PDH➣Pump, Domestic Hot Water |
| PDH➣Pneumatic Drop Hammer |