(Main list of acronyms)
__NOTOC__ m – (s) Metre – Milli M – (s) Mega- – One thousand (in Roman numerals)
MA mA – (s) Milliampere Ma – (s) Megaannum MA (s) Madagascar (FIPS 10-4 country code) (i) Marijuana Anonymous (i) Master of Arts Massachusetts (postal symbol) Megaampere Morocco (ISO 3166 digram) MAA – (i) Mathematical Association of America MAAC – (a) Metro Atlantic Athletic Conference MAC (s) Macau (ISO 3166 trigram) (a) U.S. Military Airlift Command (1966–1992) Mid-American Conference MACA – (i) Military aid to the civil authorities MACE – (a) Multi-agent computing environment MACHO – (p) Massive compact halo object MAD (a) Magnetic anomaly detector (s) Moroccan dirham (ISO 4217 currency code) (a) Mutual assured destruction MADD (a) Mothers Against Drunk Driving Myoadenylate deaminase deficiency (p) Multiply–add MAF – (i) Maintenance action form MAFF - (a) Ministry of Agriculture, Forestry and Fisheries (various countries) MAGIC – (a) Major Atmospheric Gamma-ray Imaging Cherenkov (telescope) MAGNETAR – (p) Metaprogrammable AGent NETwork ARchitecture MAGTF – (i) Marine Air-Ground Task Force mah – (s) Marshallese language (ISO 639-2 code) Mahasz – (p) Magyar Hanglemezkiadók Szövetsége (Hungarian, "Association of Hungarian Record Companies") mal – (s) Malayalam language (ISO 639-2 code) MALD – (a) Miniature Air-Launched Decoy MANPADS – (p) MAN-portable air defence system MANPRINT – (p) Mapower and personnel integration MAO (i/a) Molėtų astronomijos observatorija (Molėtai Astronomical Observatory) (p) Monoamine oxidase MAOI – (p) Monoamine oxidase inhibitor MAP – (a) Management action plan (corporate phrase) MAPP - (a) Medical assistance premium program MAPS – (a) Monitoring Avian Productivity and Survivorship MAQS – (a) Museum of the American Quilter's Society ("max") mar – (s) Marathi language (ISO 639-2 code) MAR – (s) Morocco (ISO 3166 trigram) MarBEF – (p) Marine biodiversity and ecosystem functioning MARC (a) Machine readable cataloging (or machine readable code) Mailing list archive Maryland Area Regional Commuter train service Massachusetts Animal Rights Coalition Mid-America Regional Council MARCENT – (p) United States Marine Forces Central Command MARFORCC – (p) Marine Force Component Commander MARINE (acronym) Muscles Are Required, Intelligence Not Evaluated- Used by Enlisted and Officer Ranks in the USMC MARINES (acronym) My A** Rides In Navy Equipment, Sir! - Banter with Navy Personnel by Marines MARRS – (a) Martyn Young, Alex Ayuli, Rudy Tambala, Russell Smith, and Steve Young (British electronic music act) MAS – (i) NATO Military Agency for Standardization MASAS – (a) Monte Agliale Supernovae and Asteroid Survey Maser – (a) Microwave Amplification by Stimulated Emission of Radiation MASH – (a) Mobile Army Surgical Hospital MASINT – (p) Measurement And Signature Intelligence MATREX – (p) Modeling Architecture for Technology, Research & EXperimentation MATS – (a) U.S. Military Air Transport Service (1948–1966) MAVS – (a/i) Mobile Artillery Vehicle System MAW – (s) Malawi (IOC trigram, but not FIFA or ISO 3166) MAX – (i) Meta-reasoning Architecture for "X"
MB MB (s) Manitoba (postal symbol) Martinique (FIPS 10-4 territory code) Medal of Bravery (Canada) MBA (i) Main Battle Area Main Belt Asteroid Master of Business Administration MBI – (i) Moody Bible Institute MBBL – (i) (U.S. Armor Center) Mounted Battlespace Battle Laboratory MBCC – (i) Migratory Bird Conservation Commission (U.S.) MBCS – (i) Multi-Byte Character Set MBE (p) Member of the Order of the British Empire (i) Multistate Bar Examination (U.S.) MBIDST – (i) Member of the British Institute of Dental and Surgical Technologists MBM – (i) Meat and Bone Meal MBR - (i) Master boot record MbS – (i) Mohammad bin Salman (current crown prince of Saudi Arabia) MBSE – (i) Model-based systems engineering mbsf – metres below sea floor, a depth convention used in paleontology and oceanography MBT – (i) Main Battle Tank MBTA – (i) Massachusetts Bay Transportation Authority – Migratory Bird Treaty Act (U.S.) MBTI – (i) Myers-Briggs Type Indicator
MC mC – (s) Millicoulomb MC (s) Macau (FIPS 10-4 territory code) (i) Master of ceremonies (s) Megacoulomb (i) Military Cross (bravery award) (s) Monaco (ISO 3166 digram) (i) Mortar carrier (s) Eleven hundred (in Roman numerals) MCA (i) Master of Computer Applications Micro Channel Architecture Multichannel analyzer Music Corporation of America, the original name of the now-defunct MCA Inc. (i) Malaysian Chinese Association MCC (i) Marylebone Cricket Club Mission control center Motor control center Movement control centre MCD (i) Minimal Cerebral Dysfunction Minor civil division (U.S. Census term) MCDL – (i) Model Composition Definition Language MCFT – (i) Modified compression field theory MCG – (i) Melbourne Cricket Ground MC&G – (i) Mapping, charting, and geodesy MCI – (i) Microwave Communications, Inc. MCIS – (i) Mellon Collie and the Infinite Sadness MCM – (i) Mine Counter-Measures MCMV – (i) Mine Counter-Measure Vessel MCNC (i) Microelectronics Center of North Carolina (i) Mixing Condensation Nucleus Counter MCO (i) Major Combat Operation (s) Monaco (ISO 3166 trigram) (s) Orlando International Airport (IATA code) (i) Movement Control Officer MCP (i) Maintenance Collection Point Male Chauvinist Pig MCR – (i) My Chemical Romance MCSF – (i) Marine Corps Security Forces MCT – (i) Movement Control Team MCTIS – (i) Mounted Co-operative Target Identification System MCU (i) Marine Corps University Marvel Cinematic Universe Medium close-up (camera direction in British TV scripts) (p) Microcontroller unit (i) Milk clotting units Ming Chuan University Minimum coded unit (digital imaging) Multipoint control unit Municipal Credit Union (New York) MCWS – (i) Men's College World Series, the final phase of the NCAA Division I baseball tournament in the US
MD Md – (s) Mendelevium MD (s) Fifteen Hundred (in Roman numerals) Maryland (postal symbol) (i) Medicinae Doctor (Doctor of Medicine/Medical Doctor) Mentioned in Dispatches (military) (s) Moldova (FIPS 10-4 country code; ISO 3166 digram) MDA (i) Main Defensive Action/Area (s) Moldova (ISO 3166 trigram) (i) Muscular Dystrophy Association MDF (i) Main distribution frame Medium-density fiberboard MDG (s) Madagascar (ISO 3166 trigram) (i) UN Millennium Development Goal MDL – (s) Moldovan leu (ISO 4217 currency code) MDM (i) Michigan Dartmouth MIT telescope consortium Master data management MDMA – (i) MethyleneDioxy-MethylAmphetamine (also known as "Ecstasy") MDNA – (p) Madonna's 12th studio album title (2012) MDO – (i) Membership Driven Organisation MDP – (i) Markov Decision Process MDT – (i) Mountain Daylight Time (UTC−6 hours) MDS MDV – (s) Maldives (ISO 3166 trigram) MDW (s) Chicago Midway International Airport in Chicago (IATA airport code) (i) Military District of Washington (s) Minnesota, Dakota and Western Railway (AAR reporting mark) (i) Mother’s Day Weekend
ME Me – (s) Messerschmitt ME (s) Maine (postal symbol) (i) Mechanical engineer[ing] Medical examiner Middle East (s) Middle East Airlines (IATA code) (i) Memory Effect – Myalgic Encephalomyelitis MEA (i) Maine Educational Assessment Middle East Airlines Millennium Ecosystem Assessment Minimum en route altitude Mono-ethanol Amine Multilateral Environmental Agreement MEAC – (a) Mid-Eastern Athletic Conference (ME-ac) MEC (s) Maine Central Railroad Manta, Ecuador (IATA location identifier) (i) Model European Council Mountain East Conference Mountain Equipment Co-op MECC – (a) Minnesota Educational Computing Consortium (later Corporation, dissolved 1999) MECCA – (a) Milwaukee Exposition Convention Center and Arena, a former name for the sports venue now known as UW–Milwaukee Panther Arena MECO – (a) Main engine cutoff (NASA code for point in Space Shuttle ascent when three main engines are shut down prior to External Tank (ET) separation) MEDEVAC – (p) Medical evacuation MEDLI (a) Mars Science Laboratory Entry, Descent, and Landing Instrumentation (a) Medical & Scientific Libraries of Long Island (a) Model for Effluent Disposal using Land Irrigation MEDS – (a) Mission Essential Data Set MEF (i) U.S. Marine Expeditionary Force Minimum essential facility Mission essential force MEG – (i) MagnetoEncephaloGraphy MEI – (i) Matsushita Electric Industrial Co., Ltd. MEK (i) Magyar Elektronikus Konyvtar Message encryption key (a) methyl ethyl ketone (p) Mujahideen al-Khalq MEL (i) Maya Embedded Language Michigan Electronic Library MELT – (a) Metallic Line/Loop Test (ing) MEM (i) Message Exchange Mechanism (p) Microelectromechanical MEMS – (p) Microelectromechanical System MENA – (i/a) Middle East and North Africa ("MEE-na" or "MEH-na") MEO (a) Medium Earth orbit Most efficient organization MEP (i) Mechanical Electrical Plumbing Member of the European Parliament Missions étrangères de Paris (French for "Paris Foreign Missions") Model European Parliament MER – (i) Mars Exploration Rover MERL – (i) Mitsubishi Electric Research Laboratories MES (i) Marconi Electronic Systems Medium Edison screw MESSENGER – (p) MErcury Surface, Space ENvironment, GEochemistry and Ranging MET (p) Meteorological (a) Middle European Time METAR – (p) [Meteorological] Aviation Routine weather report METL – (i/a) Mission Essential Task List ("mettle") METOC – (p) Meteorological and Oceanographic METT-T – (a/i) Mission, Enemy, Terrain, Troops, and Time available (mnemonic) METT-TC – (a/i) Mission, Enemy, Terrain [and weather], Troops [and support], Time [available] and Civilian considerations (mnemonic) MEU (i) U.S. Marine Expeditionary Unit Maximum Expected Utility MeV – (s) Megaelectronvolt MEV (i) Medical Evacuation Vehicle Musica Elettronica Viva MEX – (s) Mexico (ISO 3166 trigram) MEZ – (i) Missile Engagement Zone MES – (a) Manufacturing Execution Systems
MF mF – (s) Millifarad MF (s) Mayotte (FIPS 10-4 territory code) Megafarad (a) Motherfucker (profanity) MFG - (s) Manufacturing MFSB – (i) Mother, Father, Sister, Brother (1970s Philadelphia studio musicians collective) MFT (i) Managed file transfer Master File Table Mean field theory Media Foundation Transform Micro Four Thirds (camera design standard)
MG mg – (s) Malagasy language (ISO 639-1 code) – Milligram Mg – (s) Magnesium – Megagram MG – (i) Machine Gun – (s) Madagascar (ISO 3166 digram) – (s) Major General – (s) Mongolia (FIPS 10-4 country code) – (i) Morris Garage MGA – (s) Malagasy ariary (ISO 4217 currency code) MGB – (i) Medium Girder Bridge, Motor Gun Boat MGM – (i) Metro Goldwyn Mayer – (s) Montgomery, Alabama (Airport Code) MGPAM – My Gym Partner's a Monkey MGS – (i) Mobile Gun System
MH mh – (s) Marshallese language (ISO 639-1 code) mH – (s) Millihenry MH (s) Marshall Islands (postal symbol; ISO 3166 digram) Megahenry Montserrat (FIPS 10-4 territory code) (s) Malaysia Airlines (IATA code) MHC – (i) Major histocompatibility complex MHEV – Micro-Hybrid Electric Vehicle MHHW – (i) Mean Higher High Water (nautical charts) MHL – (s) Marshall Islands (ISO 3166 trigram) MHLW – (i) Mean Higher Low Water (nautical charts) MHRA – (i) (UK) Medicines and Healthcare products Regulatory Agency MHW – (i) Mean High Water (nautical charts) MHWN – (i) Mean High Water Neaps (nautical charts) MHWS – (i) Mean High Water Springs (nautical charts) MHz – (s) Megahertz
MI mi – (s) Māori language (ISO 639-1 code) Mi – (s) Mebi MI (s) Malawi (FIPS 10-4 country code) Michigan (postal symbol) Midway Islands (ISO 3166 digram; obsolete 1986) (i) Military Intelligence MIA (i) Missing In Action Miami International Airport (IATA code) MIAA (i) Maryland Interscholastic Athletic Association Massachusetts Interscholastic Athletic Association