| Abbreviation | Definition |
|---|---|
| PP | Purkinje potential |
| PP | pustular psoriasis |
| PP | pyrophosphate |
| PPA | palpation, percussion & auscultation |
| PPA | participating provider agreement |
| PPA | Pathology Practice Association |
| PPA | phenylpyruvic acid |
| PPA | Pittsburgh Pneumonia Agent |
| PPA | plasminogen proactivator |
| PPA | posterior pulmonary artery |
| PPA | postpartum amenorrhoea |
| PPA | preferred provider arrangement |
| PPA | Prescription Pricing Authority |
| PPA | price per accession |
| PPA | primary peritoneal adenocarcinoma |
| PPA | primary progressive aphasia |
| PPA | pure pulmonary atresia |
| PPD | peak particle diameter |
| PPD | periodontal pocket depth |
| PPD | pigmented purpuric dermatosis*** |