| Abbreviation | Definition |
|---|---|
| BSR | Boundary Scan Register |
| BSR | Back Surface Reflection |
| BSR | Basic System Release |
| BSR | Basic Statistical Returns |
| BSR | Brain Stimulation Reinforcement |
| BSR | Bowel Sounds Regular |
| BSR | Blood Sedimentation Rate |
| BSRIA | Building Services Research & Information Association |
| BSRM | Booster Solid Rocket Motor |
| BSS | Bharat Sewak Samaj |
| BSS | Broadband Satellite System |
| BSS | Block Storage Space |
| BSS | Block Starting with Symbol |
| BSS | Block Storage Start |
| BSS | Block Start Symbol |
| BSS | Beta Secondary System |
| BSSA | British Stainless Steel Association |
| BST | Binary Search Tree |
| BST | Beacon Service Table |
| BST | British Summer Time |
| BSTF | Brooklyn South Task Force |
| BSU | Blood Stool And Urine |
| BSW | Bachelor of Social Work |
| BSY | Busy |
| BSZ | Block Store Zeros |
| BT | Bit Test |
| BT | Bleeding Time |
| BT | Brain Tumor |
| BT | Bacillus Thuringiensis |
| BT | Biotechnician |
| BT | British Telecom |
| BT | Bowel Tones |
| BT | Bladder Tumor |
| BT | Breast Tumor |
| BT | Bill To .... |
| BTA | Butylated hydroxyanisole |
| BTA | Bladder Tumor Associated |
| BTA | Biological Terrain Assessment |
| BTA | Bladder Tumor Antigen |
| BTA | Bicycle Transportation Alliance |
| BTA | Blood Transfusion Association |
| BTA | Business Travel Allowance |
| BTB | Buffer Target Branch |
| BTC | Bit Test Complement |
| BTC | Bovine Tracheal Cartilage |
| BTC | Blood Transfusion Centre |
| BTC | Borgwaldt Test Centre |
| BTC | Biologically Targeted Coherent |
| BTC | Biochemical Test Coordinator |
| BTC | Binary Time Code |