| Abbreviation | Definition |
|---|---|
| AOP | Affiliate Outreach Project |
| AP | Alkaline Phosphatase |
| APAC | Anabolic Protein Activation Catalyst |
| APAL | Affordance Perception Action Laboratory |
| APAL | Applied Process Automation Laboratory |
| APAL | Australian Precision Ag Laboratory |
| APC | Antigen Presenting Cells |
| APC | Average Propensity to Consume |
| APCL | Advanced Propellants and Combustion Laboratory |
| APCR | Activated Protein C Resistance |
| APD | Automated Peritoneal Dialysis |
| APE | Andrographis Paniculata Extract |
| APEL | Applied Process Engineering Laboratory |
| APHL | Association of Public Health Laboratories |
| APHSAR | Appraisal Panel for Human Suspected Adverse Reactions |
| API | Active Pharmaceutical Ingredient |
| APL | Analytical Process Laboratories |
| APLAC | Administrative Panel on Laboratory Animal Care |
| APLAC | Admministrative Panel on Laboratory Animal Care |
| APLAC | Asia Pacific Laboratory Accreditation Cooperation |