| AAD | Atomic Absorption Detector |
|---|---|
| AAS | Atomic Absorption Spectrophotometry |
| AEA | Atomic Energy Authority (skr.) |
| AEC | Atomic Energy Commision (skr.) |
| AEC | atomic Energy Corporation (skr.) |
| AED | Atomic Emission Detector |
| AEO | Atomic Energy Organization |
| ATC | Anatomical Therapeutic Chemical Classification System for Human Medicines (skr.) |
| ATC | Anatomicko-terapeuticko-chemický klasifikačný systém (skr.) |
| EBO | Atómové elektrárne Bohunice (skr.) |