What does Mas stand for?

Masakane - Botanist in plant scientific name (HUH)

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

Masorah (BJA)

Massachusetts Reports - A publication (DLA)

Masseketh (BJA)

Astronomical Observatory of Cordoba (SAUS)

Lithuanian Catholic Youth Association Ateitis (EA)

MacDonald Agricultural Services Ltd. - British

Machine Accounting School

Macintosh Application System - Computer science (CDE)

Macroassembler

Madang Air Services - Australia

Madras, OR - Amtrak Busline code

Magazine Article Summaries

Magic Angle Spinning - Spectroscopy

Magnesia-Alumina-Silicate - Inorganic chemistry

Main Store (VLIE)

Maintenance Alert System - Truck operations

Maintenance and Services (AFIT)

Maintenance and Supply (AFIT)

Malabsorption Syndrome (MELL)

Malaysian Airline System - ICAO designator (FAAC)

Managed Airspace (SAUO)

Managed Application System (VLIE)

Management Accounting System

Management Advisory Services

Management and Administrative Statistics (OICC)

Management Appraisal Survey - Test

Manchester Astronomical Society - England (BUAC)

Man-day Account System (SAUO)

Maneuvering Attack System (MCD)

Manifest Anxiety Scale - Psychology

Manned Aerial Surveillance

Manual A1 Simplex - Aviation

Manufacture d'Armes Sainte Etienne - NCIC firearms make code (NCIC)

Manufacturing Advisory Service (DCTA)

Manufacturing Agility Server (VLIE)

Manufacturing Assembly Specification

Manufacturing Automation and Support (TIMI)

Manus - Papua New Guinea - Airport symbol (OAG)

Manus Island - Bismarck Archipelago - Airport symbol (AD)

MAP - Manufacturing Automation Protocol/One Applications Services - Software - Automotive engineering

Marine Acoustical Services

Marine Advisory Service - See also NMAS - National Oceanic and Atmospheric Administration - Information service or system (IID)

Maritime Air Superiority (NVT)

Marker Assisted Selection (SAUO)

Market Advisory Service - British Overseas Trade Board (DS)

Mars Approach Sensor

Martin Shaffer - Federal Railroad Administration identification code

Maryland Academy of Sciences (SAUO)

Masco Corp. - NYSE symbol (SPSG)

Masculine

Mason - or Masonry (ROG)

Mason Butte - Idaho - Seismograph station code, US Geological Survey - Closed (SEIS)

Massachusetts - Telegraphy (PCTE)

Massachusetts Audubon Society, Incorporated (SAUO)

Massachusetts State Library, Boston, MA - OCLC symbol (OCLC)

Mass Announcement System

Master (DSUE)

Master Activation Schedule (AAG)

Master Analysis Scheme - Monitoring technique

Master Assembly Schedule (SAUO)

Master of Accounting Science

Master of Actuarial Science

Master of Administrative Science (PGP)

Master of Administrative Studies (ADA)

Master of Aeronautical Science

Master of Applied Science

Master of Applied Spirituality (PGP)

Master of Applied Statistics

Master of Archival Studies

Material Activity Schedule

Material Analytical Services - Commercial firm

Material Application Service - NASA (IAA)

Material Availability Schedule

Mathematics Attitude Scale (EDAC)

Mature Age Student (ADA)

Max A. Schneider, MD, Inc. - Commercial firm

Maximum Aerobic Speed - Biology

Maximum Amount Subject (MARI)

McCune-Albright Syndrome - Medicine (EDAA)

McMaster University Library - UTLAS symbol

Meconium Aspiration Syndrome - Medicine

Media Advisory Service - British

Media Application Server (XSAL)

Medical Administrative Service (DAVI)

Medical Advisory Service - British

Medical Audit Statistics (PDAA)

Medical Audit Study (HCT)

Meiosis-Activating Sterol - Cytology

Member of the Arundel Society - British

Memory and Auxiliary Storage Subsystem - Space Flight Operations Facility, NASA

Mercury Analyzer System - Perkin-Elmer Co. instrument designation

Merged Area Schools (OICC)

Merseyside Archaeological Society (SAUO)

Merseyside Aviation Society - British (DBA)

Mesoatrial Shunt - Medicine (DMAA)

Metal-Alumina Semiconductor (IAA)

Metal-Alumina-Silicon (IEEE)

Metal Anchor Slots - Technical drawings

Metals/Alloy Solidification (SAUS)

Metastable Atomic State

Methods and Standards (MCD)

Methods of Air Sampling and Analysis - Air Pollution Control Association

Methods of Analysis Sub-committee (SAUO)

Mezhdunarodnaya Assotsiatsiya Sudovladeltsev - International Shipowners' Association - Poland (EAIO)

Michigan Academy of Science (SAUO)

Michigan Adaptive Sports (EARSL)

Michigan Audubon Society (SAUO)

Microage Solutions, Inc. (EFIS)

Micro-Alloyed Steel - Metallurgical engineering

Micro-Assembly System (VLIE)

Micro Automation System

Microbeam Analysis Society (EA)

Microprogram Automation System - Computer science (IAA)

Midcourse Active System (MCD)

Middle Air Space (PDAA)

Military Agency for Standardization - Brussels, Belgium - NATO

Military Airlift Squadron - Air Force (CINC)

Military Antiquarian Society (SAUO)

Military Area Services (SAUO)

Military Assistance Sales (MCD)

Milk-Alkali Syndrome - Medicine (DMAA)

Millimeterwave Atmospheric Sounder (SAUO)

Milwaukee Astronomical Society (SAUO)

Mine Avoidance Sonar (SAUS)

Minimal Access Surgery (SAUO)

Ministry of Aviation Supply - British

Minnesota Academy of Science

Missile Alignment Set

Missile Assembly Site (NATG)

Missile Assigned Switch

Missile Auxiliaries System

Mission Area Summary (ACAE)

Mission Auxiliary Subsystem (ACAE)

Mississippi Academy of Sciences (BUAC)

Mississippi Association of Supervisors (EARSL)

Missouri Academy of Science (SAUO)

Mobile Access Structure - Space launch term (IGSL)

Mobile Arm Support - Orthopedics (DAVI)

Mobile Atmospheric Spectrometer - Marine science

Model Abattoir Society (SAUO)

Model Assignment Sheet (MCD)

Modern Army Supply

Modern Army System

MODIS - Moderate Resolution Imaging Spectrometer Airborne Simulator - Climatology (CERES)

Modular Accounting System - Computer science (IAA)

Modular Application Systems - Martin Marietta Data Systems

Monaco Group, Inc. - Toronto Stock Exchange symbol

Monetary Allowance in Lieu of Subsistence

Monetary Authority of Singapore (NUMA)

Money Advice Scotland (BUAC)

Monitor and Alarm System (MCD)

Monmouth Antiquarian Society (EA)

Monoacetoxylscirpenol - Organic toxin

Morgagni-Adam-Stokes (DB)

Morphing Aircraft Structures Program - Defense Advanced Research Projects Agency (RCD)

Mortgage Analysis System (FOTI)

Mount Alvernia Seminary (SAUO)

Mount Angel Seminary - Oregon

Movement Alarm System - Gynecology

Movimiento al Socialismo - Movement towards Socialism - Argentina - Political party (PPW)

Movimiento al Socialismo - Movement towards Socialism - Venezuela - Political party (PPW)

Movimiento de Accion Socialista - Peru - Political party (EY)

Movimiento para Accion y Solidaridad - Guatemala - Political party (EY)

Muerte a los Secuestradores - Death to Kidnappers - Colombia (PD)

Mujeres en Accion Sindical - Organizes national and international conferences on women in the economy - Mexico (CROSS)

Multi-Agent System (IDAI)

Multiaspect Signaling (IEEE)

Multiple Address System - Telecommunications (CDE)

Multiple Aim Structure (MCD)

Multiple Award Schedule - Government contracting

Municipal Analysis Services, Inc. - Information service or system (IID)

Municipal Art Society (SAUO)

Mutually Assured Survival

Myanmar Agricultural Service (SAUO)

Ngile - Language code (ETLW)

Palestine Economic Policy Research Institute - Research center (RCD)

Society of African Missions (SAUO)

Technical Fiberglass, Clayton, NY - Manufacturer code for watercraft hull identification number (USCG)

Masai - MARC language code - Library of Congress (LCCP)

Masonry (VRA)