| Abbreviation | Definition |
|---|---|
| ABC | axiobuccocervical Dentistry |
| ABCD | Airway Breathing Circulation Defibrillation |
| ABG | abnormal blood gas |
| ABG | air bone gap |
| ABG | alveolar bone grafting |
| ABG | area-based grant |
| ABG | autogenous bone graft |
| ABG | axiobuccogingival Dentistry |
| ABH | Association of Behavioral Healthcare |
| ABHI | Association of British Healthcare Industries |
| ABI | absolute benefit increase |
| ABI | ankle/brachial blood pressure index |
| ABI | area-based initiative |
| ABIU | Acute brain injury unit |
| ABM | acute bacterial meningitis |
| ABM | adjusted body mass |
| ABM | alveolar basement membrane |
| ABM | autobiographical memory |
| ABM | autologous bone marrow |
| ABN | ablation nephropathy |