Arabian Sea and Area - MARC geographic area code - Library of Congress (LCCP)
Augite (SAUS)
Austria - MARC country of publication code - Library of Congress (LCCP)
Author - Editing notation (WDMC)
Unix Sound File - Computer science
Auberger - Blood group
Aurum - Gold - Chemical element
Australia Antigen - Immunology
Australian Stock Exchange (SPSG)
Author - Editing notation (WDMC)
Autumn
Gold - Chemical Element (DOG)
National Library of Australia, Canberra, Australia - Library symbol - Library of Congress (LCLS)
Aarhus University (SAUO)
About Uncirculated - Numismatic term
Absorbance Unit - Physical chemistry
Acadia University (SAUO)
Access Unit - Computer science (TNIG)
Accounting Unit (NATG)
Acousto-Ultrasonic (SAUS)
Adaptive Unit - Open Systems Interconnection (ODAA)
Adder Unit (SAUS)
Addressable Unit (SAUS)
Address Unit - Computer science
Adjunct Unit (SAUS)
Administrative Audit (SAUS)
Administrative Unit (SAUO)
Administrative Update - FCC application purpose code (FCCC)
Ad Usum - According to Custom - Pharmacy
Affirm United - Association - Canada (EAIO)
African Union
Agricore United - Toronto Stock Exchange symbol - Canada
Airborne Unit
Air to Underwater (SAA)
Air University - Maxwell Air Force Base, AL
Alabama University (SAUO)
Alfred University (SAUO)
Alignment Unit
Allahabad University (SAUO)
Allen University (SAUO)
Allergenic Unit - Medicine (DAVI)
All Up (ADA)
Alma Urbis - Beloved City - Rome
Almost Uncirculated - Condition of coins - Numismatics
Alopecia Universalis - Dermatology
Alternate Universe - Non-canon
Alternate Uses - Personality research - Psychology
Amax Gold, Inc. - NYSE symbol (SPSG)
Americana Unit - American Topical Association (EA)
Americans United for separation of church and state (SAUS)
American Unit (SAUO)
American University - Washington, DC
Amplifier Unit (OA)
Analog Applique Unit - Military technology (DDF)
Analytical Ultracentrifugation - Separation science
Analyzer Unit (CAAL)
Andrews University (SAUO)
Anglogold Ltd. ADS - NYSE symbol (SPSG)
Angstrom Unit - Medicine (MELL)
Anno Urbis - In the Year of the City of Rome - Latin
Anson Unit - Of hydrolytic enzyme activity
Answer Unit (IAA)
Antitoxin Unit - Immunology
Anti-U-Boat Warfare - British - World War II
Aphthous Ulcer - Medicine (MELL)
Apprentices Union - British
Arbitrary Unit - Medicine (MELL)
Ariel Resources - TS Symbol
Arithmetic Unit - Computer science
Army Unit
Assault Unit (SAUO)
Assembler Unit - Computer science (IAA)
Assessment Unit (WDAA)
Asset Utilization (EBF)
Associated Universities (SAUO)
Associations Unlimited - A publication
Assumption University (SAUO)
Astromical Unit (SAUS)
Astronomical Unit - Equal to average distance from earth to sun
Astronomy Unit - Later, ASU - American Topical Association (EA)
As Usual - Chat lingo (CHAT)
Atheists United (EA)
Atlanta University (SAUO)
Atlantic Union (DAS)
Atomic Units (MCD)
Attachment Unit (MCD)
Auburn University - Alabama
Audio and Electroacoustics - IEEE
Audit
Augmitto Explorations Ltd. - Toronto Stock Exchange symbol
August
Aunes - French Ells
A-Upper (SAUS)
Aures Unitas - Both Ears - Latin
Auris Uterque - Each Ear - Latin
Aurora - Tire casing code
Austerity
Australia - ANSI two-letter standard code (CNC)
Austral Lineas Aereas - ICAO designator (AD)
Austria - NCIC firearms make code (NCIC)
Austria - NCIC country-territory code (NCIC)
Austria
Author - Online database field identifier - Computer science
Authorized User (DCTA)
Autocoder (SAUS)
Automatic (IAA)
Automobile
Autopsy - Also, AUT - Medicine
Auxiliary Unit
Azauridine (MAE)
Beginn des Auflaufens (SAUS)
University of Alabama, University, AL - Library symbol - Library of Congress (LCLS)
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