 Alarm | Military |
| Allomatic | Organizations |
| Asynchronous Line Multiplexer | Technology |
| Acral Lentiginous Melanoma | Medical |
| Asset Liability Management | Business |
| Association of Lloyd's Members | Business |
| Asynchronous Line Module | Technology |
| A Laboratory Mistake | Education |
| Acrolentiginous Melanoma | Medical |
| Adaptive Learn Matrix | Technology |
| Adults Learning Maths | Education |
| Airlift Loading Model | Military |
| Alamethicin | Medical |
| Allmerica Securities Trust | Organizations |
| Allmerica Security Trust | Organizations |
| Almitrine Bismesylate | Medical |
| Almokalant | Medical |
| Alveolar Lining Material | Medical |
| Antiluminal Membrane | Medical |
| Application Level Management | Common |