| AAB | Agence Africaine de Biotechnologie |
|---|---|
| AAS | American Arachnological Society |
| ABSOLÚTNOSŤ | imúnnosť voči pochybnosti a fenomenologickej redukcii (filoz.) |
| ABT | Advanced Backplane Technology |
| ACT | Advanced Computer Technology |
| ACT | Alternative Control Technology |
| ACT | American Council for Technology |
| ADT | Active Denial Technology |
| ADT | Advanced Data Technologies |
| ADT | Art Design Technology |