| Abbreviation | Definition |
|---|---|
| B | Biological |
| BA | Bacilus Anthraxis |
| BABL | Brain and Biomarker Laboratory |
| BAC | Bile Acid Concentration |
| BAC | Blood alcohol content |
| BACF | Biological Activated Carbon Filtration |
| BACL | Bay Area Compliance Laboratories |
| BACL | Bay Area Compliance Laboratory |
| BAG | Butorphanol, Acepromazine, and Glycopyrrolate |
| BALCO | Bay Area Laboratories Co Operative |
| BALCO | Bay Area Laboratory Co Operative |
| BARL | Biobehavioral Alcohol Research Laboratory |
| BARQA | British Association of Research Quality Assurance |
| BART | Biological Activity Reaction Test |
| BAT | Bacteria |
| BAT | Brown Adipose Tissue |
| BATL | Biopharmaceutical Analysis Training Laboratory |
| BAVL | Biosphere Atmosphere Virtual Laboratory |
| BBDR | Biologically Based Dose Response |
| BBG | Baby Blood Group |