| HAP | 6-hydroxy-aminopurine |
|---|---|
| HAP | Hazardous air pollutant |
| HAP | Hospital-acquired pneumonia |
| HAP | Hydroxyapatite |
| HAP | Hyperthermic Antiblastic Perfusion |
| HAP | hyperpolarising after-potential |
| HAPE | High Altitude Pulmonary Edema |
| HaPV | Hamster polyomavirus |
| HaPV | hamster papovavirus |