| Abbreviation | Definition |
|---|---|
| ABE | Artificial Brain Enhancement |
| ABEM | American Board of Emergency Medicine |
| ABG | Arterial Blood Gases |
| ABI | Ankle Brachial Index |
| ABI | ankle-brachial index |
| ABLA | Acute Blood Loss Anemia |
| ABMD | Anterior Buccal Mandibular Depression |
| ABMD | Areal Bone Mineral Density |
| ABNL | Abnormal |
| ABO | Blood Grouping System |
| ABOEP | American Board of Osteopathic Emergency Physicians |
| ABP | Abductor Pollis Brevis |
| ABP | Arterial Blood Pressure |
| ABPA | Allergic BronchoPulmonary Aspergillus |
| ABPI | Ankle Brachial Pressure Index |
| ABPP | American Board of Professional Psychology |
| ABPS | American Board of Physician Specialties |
| ABR | Auditory Brainstem Response |
| ABS | Air Breathing System |
| ABS | Asian Back Syndrome |