| AH | Artificial heart |
|---|---|
| Ah | Aryl hydrocarbon |
| AH | Atypical hyperplasia |
| AH | airway hyper-responsiveness |
| AH | ancestral haplotype |
| AH-B | acute hepatitis B |
| AH/POA | anterior hypothalamic pre-optic area |
| AHA | 2-Amino-N6-hydroxyadenine |
| AHA | Acetohydroxamic acid |
| AHA | Alpha hydroxy acid |