| PPD | Postpartum depression |
|---|---|
| PPD | Preprodynorphin |
| PPD | Probing Pocket Depth |
| PPD | Purified Protein Derivate |
| PPD | Purified Protein Derivative |
| PPD | Purified Protein Derivative of Tuberculin |
| PPD | proximal pars distalis |
| PPDK | Pyruvate orthophosphate dikinase |
| PPDK | Pyruvate phosphate dikinase |
| PPE | Personal protective equipment |