| AAS | Acid Addition System |
|---|---|
| ABL | Address Block Locator |
| ABP | Address Book Provider |
| ACT | Additional Centre Tank |
| ADD | Addition (skr.) |
| ADK | Additional Decryption Key |
| AEN | Address Enable (skr.) |
| AOR | Adjusted Odds Ratio (skr.) |
| ARO | anesteziologicko-resuscitačné oddelenie |
| ARO | nemocničné oddelenie |