| Abbreviation | Definition |
|---|---|
| ANCA | antineutrophil cytoplasmic autoantibodies |
| ANCA(s) | antineutrophil cytoplasmic antibody/ies |
| AnCg | Anterior Cingulate Cortex |
| ANCL | Adult Neuronal Ceroid Lipofuscinosis |
| ANCN | Absolute Neutrophil Count at the Nadir |
| ANDA | Abbreviated New Drug Application |
| ANES | Anesthesia |
| ANF | Anti- Nuclear Factor |
| ANF | Atrial Natriuretic Factor |
| ANG | Angle |
| ANI | Acute nerve irritation |
| ANLL | Acute Non Lymphocytic Leukemia |
| ANP | Anatomy and Physiology |
| ANP | Atrial Natriuretic Peptide |
| ANPC | Animal Nutrition and Physiology Center |
| ANPC | Animal Nutrition Physiology Center |
| ANRI | Acute Nerve Root Irritation |
| ANS | Autonomic Nervous System |
| ANT | Anterior |
| anti-HBc | Antibody to hepatitis B core antigen |