What does bl stand for?

Bale (ADWA)

Bibliography (GEAB)

Black (WDMC)

Blue (VRA)

Brazil - IYRU nationality code - MARC country of publication code - Library of Congress (LCCP)

Bilateral (SAUS)

Blackford's Indiana Reports - 1817-47 - A publication (DLA)

Blackstone's Commentaries on the Laws of England - A publication (DLA)

Black's United States Supreme Court Reports - 66-67 United States Reports - A publication (DLA)

Blasinstrumente - Wind Instruments - Music

Blatchford's United States Circuit Court Reports - A publication (DLA)

Blatt - Newspaper, Sheet - German (BJA)

Bleomycin - Also, B, Bleo, BLM - Antineoplastic drug

Blessed (ODCC)

Blocks - Basketball

Blount's Law Dictionary - A publication (DLA)

Blume - Botanist in plant scientific name (HUH)

Boulevard (GEOI)

Air BVI - ICAO designator (AD)

Baccalaureat en Loisirs - Canada (DD)

Bachelor in Law (DD)

Bachelor of Laws

Bachelor of Letters

Bachelor of Literature

Background Listening - Music

Backlash (MSA)

Backlit (VLIE)

Badminton Library - A publication

Bale

Balingen - German license plate city code

Ballantine Laboratories, Inc. (SAUO)

Ball Lightning

Bangladesh - NCIC country-territory code (NCIC)

Bank Larceny

Bank Leumi le-Israel B.M. (EFIS)

Barrel (MCD)

Barre-Lieou - Syndrome - Medicine (DB)

Barrister-at-Law

Basal Lamina - Neuroanatomy

Baseline

Basic Language (VLIE)

Basic Letter (SAUS)

Basic Linkage (SAUS)

Basic Load - Ammunition (AABC)

Basolateral - Anatomy

Basutoland

Bath Road - Bristol - British depot code

Bats Left-Handed - Baseball

Battery Leader (SAUS)

Battery Left (SAUS)

Bausch & Lomb, Inc. (EFIS)

Beak Line

Bed Load - Geology (UWER)

Bell (IEEE)

Bellanca Aircraft Corp. - ICAO aircraft manufacturer identifier (ICAO)

Bell on Leases - A publication (DLA)

Belly Laughing (TONE)

Bend Line (MSA)

Bengal Lancers - British military (DMA)

Beschwerdenliste (DB)

Bessey-Lowry Unit - Medicine (MAE)

Beta Lambda (SAUS)

Bettis Atomic Power Laboratory (SAUO)

Between Layers (UWER)

Betz Laboratories, Inc. (EFIS)

Bibel-Lexikon - A publication (BJA)

Bibel und Liturgie - A publication (BJA)

Bible League (EA)

Bibliographic Level (UWER)

Bilateral lower Lung fields (SAUS)

Bilayer (UWER)

Bilevel (MCD)

Bill - Telegraphy (PCTE)

Billet (MSA)

Bill Leff - Air show performer (ASPC)

Bill Lodged - British (ADA)

Bill of Lading - Shipping

Bill of Loading (SAUS)

Biological Laboratory - Army (MCD)

Bioluminescence

Biosafety Laboratory (SPACE)

Bit Length (VLIE)

Bit Line (UWER)

Bit Location (SAUS)

Black

Black Leghorn - Poultry

Black Letter - Printing

Black Light

Black Liquor - Pulp and paper technology

Black Lung - Social Security Administration (OICC)

Blackwall - Tire design

Blade (MSA)

Blair Corp. - AMEX symbol (SPSG)

BLAISE - British Library Automated Information Service number - Database terminology (NITA)

Blank - Microtiter plate

Blanking (DEN)

Blank Line - Computer science

Blaser - Blower - Wind instrument player

Blast

Bleed (MSA)

Blessed

Blind Loaded (SAUS)

Blind Loop (MELL)

Bloch & Co., Cleveland, OH - Library symbol - Library of Congress (LCLS)

Bloch Line - Solid-state physics (UWER)

Block

Block Label - Computer science (IAA)

Block Length

Block Loading (SAUS)

Blood

Blood Lead

Blood Loss - Medicine (AAMN)

Bloom - or Blossom (ROG)

Bloque

Blotting Grade - Immunology (UWER)

Blount, Inc. (EFIS)

Blower

Blowing - ICAO (FAAC)

Blowline

Blue (KSC)

Blue Laid - Paper (DGA)

Blue Light (UWER)

Blue Line (MCD)

Blue Pennant - Navy - British

Blumlein Line (UWER)

Boat Lanes

Boatswain Lieutenant (SAUS)

Bodleian Library (DAS)

Body Length (SAUS)

Body Lice (MELL)

Body Line - Typography (WDMC)

Bolivia - GeoNet country code (GEON)

Bolivia - Federal Information Processing Standard (FIPS) country code (GEON)

Bolt Lock (SAUS)

Bomb Line (DNAB)

Bonanza Air Lines, Inc. (SAUO)

Bone-Marrow-Derived Lymphocyte - Hematology

Bonner Nuclear Laboratory - Rice University (RCD)

Booklist - A publication (BRI)

Boolean Logic (SAUS)

Border Leicester - Sheep

Border Line

Borderline Lepromatous - Medicine

Bottom Layer - Technical drawings

Bottom Level

Boundary Layer

Boundary Line (SAUS)

Boundary Lubrication (UWER)

Boyle's Law (UWER)

Bragg's Law (UWER)

Brascan Ltd. - Toronto Stock Exchange symbol

Bravais Lattice (UWER)

Breadth-Length

Breakdown Lorry (WDAA)

Breaking Load (UWER)

Breath Length (SAUS)

Breech-Loading - Weapon

Briggian Logarithm (SAUS)

Bristol Laboratories

British Legion

British Leyland - Later, BL Ltd., then Rover Group - Auto manufacturing company

British Library - Formerly, The British Museum Reading Room

British Lion - Motion picture company

Bronchial Lavage - Medicine (MELL)

Buccolingual - Dentistry

Buddy List - Chat lingo (CHAT)

Building Line - Technical drawings

Bullock Ridge Splitting - Agriculture

Bundelkund Legion - British military (DMA)

Bureau of Litigation - Federal Trade Commission

Burkitt's Lymphoma - Medicine

Business Licence - British (ADA)

Bus Link (IAA)

Bus Load (SAUS)

Butte Livestock Feeding - Federal Railroad Administration identification code

Butt Line - Technical drawings

Buttock Line - Engineering

By-Line - Publishing

Graduate in Letters

South Africa - Formerly, FY - License plate code assigned to foreign diplomats in the US

Treasury Bill - NCIC United States-issued securities code (NCIC)