| B/F | Bag Filter | - | Computer Acronyms(common) |
| B1B | (coulomb) Boundary-corrected First Born (for Scattering) | - | Computer Acronyms(common) |
| B2B | Boundary(-corrected) Second Born (for Scattering) | - | Computer Acronyms(common) |
| B3LYP | A Density Functional Method Due To Lee | - | Computer Acronyms(common) |
| BA | Best Atom (basis Set) | - | Computer Acronyms(common) |
| BA + P | Best Atom + Polarization Function | - | Computer Acronyms(common) |
| BAAQMD | Bay Area Air Quality Management District | - | Computer Acronyms(common) |
| BABB | Back Arc Basin Basalt | - | Computer Acronyms(common) |
| BABE | Bio-Augmentation Batch Enhanced | - | Computer Acronyms(common) |
| BAC | Bacterial Artificial Chromosome | - | Computer Acronyms(common) |
| BAC | Biological Activated Carbon | - | Computer Acronyms(common) |
| BAC-MP4 | Bond-additivity-corrected Moeller-Plesset 4th-order Perturbation | - | Computer Acronyms(common) |
| BACER | Biological And Climatological Effects Research | - | Computer Acronyms(common) |
| BACM | Best Available Control Measure | - | Computer Acronyms(common) |
| BACR | British Association For Cancer Research | - | Computer Acronyms(common) |
| BACT | Best Available Control Technology | - | Computer Acronyms(common) |
| BADGE | Bisphenol A Diglycidyl Ether | - | Computer Acronyms(common) |
| BADGER | Bay Area Digital Geo-Resource | - | Computer Acronyms(common) |
| BADT | Best Available Demonstrated Technology | - | Computer Acronyms(common) |
| BAEP | Brainstem Auditory Evoked Potentials | - | Computer Acronyms(common) |
| BAER | Brainstem Auditory Evoked Response | - | Computer Acronyms(common) |
| BAF | Bioaccumulation Factor | - | Computer Acronyms(common) |
| BAF | Biological Aerated Filter | - | Computer Acronyms(common) |
| BAFF | B-cell Activating Factor | - | Computer Acronyms(common) |
| BAGI | Backscatter Absorption Gas Imaging | - | Computer Acronyms(common) |
| BAHC | Biospheric Aspects Of The Hydrological Cycle | - | Computer Acronyms(common) |
| BAIR | Biological Atlas Of Insulin Resistance | - | Computer Acronyms(common) |
| BAL | Blood Alcohol Level | - | Computer Acronyms(common) |
| BAL | Broad Absorption Line | - | Computer Acronyms(common) |
| BAL | Bronchoalveolar Lavage | - | Computer Acronyms(common) |
| BALF | Bronchoalveolar Lavage Fluid | - | Computer Acronyms(common) |
| BALP | Bone Alkaline Phosphatase | - | Computer Acronyms(common) |
| BALQSO | Broad Absorption Line Quasi-stellar Object | - | Computer Acronyms(common) |
| BALR | Broad Absorption Line Region | - | Computer Acronyms(common) |
| BAM | Brewster Angle Microscopy | - | Computer Acronyms(common) |
| BAMEX | Bow Echo And MCV Experiment | - | Computer Acronyms(common) |
| BAMGAR | Barium Magnesium Germanate Garnet | - | Computer Acronyms(common) |
| BAN | British Approved Name (for Drugs) | - | Computer Acronyms(common) |
| BANSHEE | Beam Accelerator For Novel Super High Energy Electron | - | Computer Acronyms(common) |
| BAO | Best Atomic Orbital Basis | - | Computer Acronyms(common) |
| BAP | Bioavailable Phosphorus | - | Computer Acronyms(common) |
| BAPMON | Background Air Pollution Monitoring Network | - | Computer Acronyms(common) |
| BAQ | Building Air Quality | - | Computer Acronyms(common) |
| BARC | Bhabha Atomic Research Center | - | Computer Acronyms(common) |
| BARC | Bottom Antireflective Coating | - | Computer Acronyms(common) |
| BARF | Best Available Retrofit Facility | - | Computer Acronyms(common) |
| BARITT | Barrier Injection Transient Time | - | Computer Acronyms(common) |
| BART | Best Available Retrofit Technology | - | Computer Acronyms(common) |
| BART | Biological Activity Reaction Test | - | Computer Acronyms(common) |
| BASF | Badische Anilin- Und Soda-Fabrik | - | Computer Acronyms(common) |
| BASHD | Band Selective Homonuclear Decoupling | - | Computer Acronyms(common) |
| BASTE | Bay Area Sewage Toxics Emissions | - | Computer Acronyms(common) |
| BASTM | Beam-assisted Scanning Tunneling Microscope | - | Computer Acronyms(common) |
| BAT | Back Arc Tectonics | - | Computer Acronyms(common) |
| BAT | Best Available Technology | - | Computer Acronyms(common) |
| BAT | Biol. Tolerance Value (German Std.) | - | Computer Acronyms(common) |
| BAT | Brown Adipose Tissue | - | Computer Acronyms(common) |
| BATEA | Best Available Technology Economically Achievable | - | Computer Acronyms(common) |
| BATHEN | Burnable Fuel Abatement Through Efficient Improvement And Nonfossil Fraction Increase | - | Computer Acronyms(common) |
| BATNEEC | Best Available Technology Not Entailing Excessive Cost | - | Computer Acronyms(common) |
| BATS | Biosphere-Atmosphere Transfer Scheme | - | Computer Acronyms(common) |
| BATSE | Burst And Transient Source Experiment | - | Computer Acronyms(common) |
| BAW | Bond-order Alternation Wave (mol. Orbital) | - | Computer Acronyms(common) |
| BAW | Bulk Acoustic Wave | - | Computer Acronyms(common) |
| BAZ | Best Atom Zeta Basis Set | - | Computer Acronyms(common) |
| BAZ | Biologically Active Zones | - | Computer Acronyms(common) |
| BBB | Blood-brain Barrier | - | Computer Acronyms(common) |
| BBFM | Bond-bending Force Model (for Phonon Calcns.) | - | Computer Acronyms(common) |
| BBGKY | Bogoliubov-Born-Green-Kirkwood-Yvon Equations (in Kinetic Theory Of Fluids) | - | Computer Acronyms(common) |
| BBIC | Bioluminescent Bioreporter Integrated Circuits | - | Computer Acronyms(common) |
| BBK | Brauner-Briggs-Klar (wave Function In Atom-electron Scattering) | - | Computer Acronyms(common) |
| BBMV | Brush-border Membrane Vesicle | - | Computer Acronyms(common) |
| BBN | Big Bang Nucleosynthesis | - | Computer Acronyms(common) |
| BBO | Beta-barium Borate | - | Computer Acronyms(common) |
| BBO | Bonding Bond Orbital | - | Computer Acronyms(common) |
| BBP | Benzyl Butyl Phthalate | - | Computer Acronyms(common) |
| BBS | Bulletin Board System | - | Computer Acronyms(common) |
| BBSRC | Biotechnology And Biological Sciences Research Council | - | Computer Acronyms(common) |
| BBXRT | Broad Band X-Ray Telescope | - | Computer Acronyms(common) |
| BCA | Bicinchoninic Acid | - | Computer Acronyms(common) |
| BCA | Binary-collision Approximation | - | Computer Acronyms(common) |
| BCAA | Branched-chain Amino Acids | - | Computer Acronyms(common) |
| BCAD | Business Computer-aided Manufacturing | - | Computer Acronyms(common) |
| BCC | Brueckner Coupled Cluster | - | Computer Acronyms(common) |
| BCC | Basal Cell Carcinoma | - | Computer Acronyms(common) |
| BCC | Bioaccumulative Chemicals Of Concern | - | Computer Acronyms(common) |
| BCC | Body Centered Cubic | - | Computer Acronyms(common) |
| BCCD | Brueckner Coupled Cluster With Double Excitations | - | Computer Acronyms(common) |
| BCCD | Betaine Calcium Chloride Dihydrate | - | Computer Acronyms(common) |
| BCCP | Biotin Carboxyl-carrier Protein | - | Computer Acronyms(common) |
| BCDF | B Cell Differentiation Factor | - | Computer Acronyms(common) |
| BCF | Bulked Continuous-filament | - | Computer Acronyms(common) |
| BCF | Beneficiated Coal Fuel | - | Computer Acronyms(common) |
| BCF | Bioconcentration Factor | - | Computer Acronyms(common) |
| BCG | Bacillus Calmette-Guerin | - | Computer Acronyms(common) |
| BCGA | British Compressed Gases Association | - | Computer Acronyms(common) |
| BCGF | B Cell Growth Factor | - | Computer Acronyms(common) |
| BCIRA | British Cast Iron Research Association | - | Computer Acronyms(common) |
| BCKA | Branched-chain Keto-acid | - | Computer Acronyms(common) |
| BCKD | Branched-chain Alpha-ketoacid Dehydrogenase | - | Computer Acronyms(common) |
