Cowboy Blood–brain barrier BBC (i) Breeding Bird Census British Broadcasting Corporation (i) Bumper to Back of Cab (trucking measurement) BBCOR – (i) Bat-ball coefficient of restitution (standard used for non-wood bats used in US college baseball) BBD (s) Barbadian dollar (ISO 4217 currency code) (a) Bowel Bladder Dysfunction BBL (i) Be Back Later Bird Banding Laboratory British Basketball League BBN – (i) Bolt, Beranek and Newman BBOL – Blessing Ball of Light BBQ – (s) Barbecue BBS (i) Breeding Bird Survey (North America) Brigade/Battalion Battle Simulation Bulletin Board System BBSRC – (i) U.K. Biotechnology and Biological Sciences Research Council BBVA – (i) Banco Bilbao Vizcaya Argentaria (Spanish bank) BBYO – B'nai B'rith Youth Organization BC BC (i) Before Christ Blind Copy (in emailers) Boston College (s) Botswana (FIPS 10-4 country code; from Bechuanaland) British Columbia (postal symbol) BCA (i) Bachelor of Computer Application Black Coaches & Administrators BCC – (i) Blind Carbon Copy BCCI (i) Bank of Credit and Commerce International Board of Control for Cricket in India BCD – (i) Binary-Coded Decimal BCE (i) Banque centrale européenne (French, "European Central Bank") Battlefield Co-ordination Element BC Electric, a former name for BC Hydro Before Common Era BCER – (i) British Columbia Electric Railway BCFG – (s) Patchy Fog (METAR Code) BCIS (fratricide avoidance system) – (i) Battlefield Combat Identification System BCLL – (a) Bibliography of Celtic Latin Literature BCPL – (i) Basic Combined Programming Language (progenitor of C) BCS (i) Bachelor of Computer Science Bardeen, Cooper, and Schrieffer superconduction theory Bowl Championship Series (US college football) BCT – (i) Brigade Combat Team BD BD (s) Bangladesh (ISO 3166 digram) Bermuda (FIPS 10-4 territory code) BDA – (i) British Dental Association BDD (i) Body Dysmorphic Disorder British Defence Doctrine Bde – (s) Brigade BDFL – (i) Benevolent Dictator For Life BDI – (s) Burundi (ISO 3166 trigram) BDNF – (i) Brain-Derived Neurotrophic Factor BDO – (i) Battle Dress Overgarment BDOS – (a) Basic Disk Operating System; part of CP/M BDS (i) – Bachelor of Dental Surgery Boycott, Divestment and Sanctions, a movement advocating various boycotts of Israel in the context of the Arab–Israeli conflict BDSM – (i) Bondage and Discipline, Domination and Submission, Sadism and Masochism BDT (s) Bangladeshi taka (ISO 4217 currency code) (i) Bureau de développement des télécommunications (Telecommunication Development Bureau, became ITU-D) BDU – (i) Battle-Dress Uniform BE be – (s) Belarusian language (ISO 639-1 code) Be –