| Abbreviation | Definition |
|---|---|
| AB | Added Benefit |
| AB | Antibody |
| AB | Antigen Binding |
| AB | Automatic Behavior |
| ABA | Applied Behavioral Analysis |
| ABBP | Ankle to Brachial Blood Pressure |
| ABC | Absolute Brain Control |
| ABC | Abstinence Behavioral Change |
| ABC | Airway Breathing And Circulation |
| ABC | Airway Breathing Circulation |
| ABC | Airway Breathing Cold |
| ABC | Always Breastfeed Children |
| ABC | Aspiration, Biopsy, Cytology |
| ABC | ATP Binding Cassette |
| ABC | Automated Blood Collection |
| ABCD | Access To Baby And Child Dentistry |
| ABD | Abdomen |
| ABD | Abdominal |
| ABD | Adynamic Bone Disorder |
| ABE | Acute Bacterial Endocarditis |