| A-IIt | Annexin II tetramer |
|---|---|
| A-kinase | AMP dependent protein kinase |
| A-Mel-3 | Amelanotic melanoma |
| A-MuL V | Abelson murine leukaemia virus |
| A-PK | AMP dependent protein kinase |
| A-R | anoxia-reoxygenation |
| A-S | activity stress |
| a-Se | Amorphous selenium |
| A-SMase | Acid sphingomyelinase |
| A-T | Atrial tachycardia |