| Abbreviation | Definition |
|---|---|
| ASBS | Areas of Special Biological Significance |
| ASCB | American Society Cell Biology |
| ASD | Aerobic Sludge Digestion |
| ASM | American Society for Microbiology's |
| ASMB | American Society for Matrix Biology |
| ASSB | aDVANCES IN SYSTEMS AND SYNTHETIC BIOLOGY |
| ASSET | Astrobiology Summer Science Experience for Teachers |
| AT | Aerobic Tank |
| AT | Anearobic Tank |
| ATBC | Association for Tropical Biology and Conservation |
| ATBC | Association of Tropical Biology and Conservation |
| ATO | Alpha To Omega |
| ATVB | Arteriosclerosis, Thrombosis, and Vascular Biology |
| BACON | Biology and Chemistry Online Notes |
| BACTERIOL | Bacteriology |
| BAEC | Bovine Aortic Endothelial Cells |
| BAFF | Biological Aerated Flooded Filter |
| BAFM | Biological Activator Formulated Material |
| BAIR | Biological Atlas of Insulin Resistance |
| BASC | Biology Academic Success Center |