| Abbreviation | Definition |
|---|---|
| APML | Acute Promyelocytic Myelogneous Leukemia |
| APO | Acute Pulmonary Oedema |
| ApoA1 | Apolipoprotein A1 |
| ApoB | Apolipoprotein B |
| APP | Appears |
| APP | Appendix |
| APP | Appointment |
| APP | Approximate |
| APP | Audio Psycho Phonology |
| APPAP | Association of Postgraduate Physician Assistant Programs |
| APPLE | A Post Psychiatric Leisure Experience |
| APS | Absolutely Precious Skin |
| APS | Active Positive Symbiosis |
| APSA | American Physician Scientists Association |
| APSD | Antisocial Process Screening Device |
| APSG | American Physicians Service Group |
| APT | arterial physiological testing |
| APVOD | Arteriosclerotic Peripheral Vascular Occlusive Disease |
| AQ | Aqueous |
| AQ | Autism Quotient |