Bobby A. McLawhorn, Ayden, NC - Manufacturer code for watercraft hull identification number (USCG)
Intervega - Movement for Compassionate Living the Vegan Way (EAIO)
Lesley College, Cambridge, MA - Library symbol - Library of Congress (LCLS)
Macaguaje - Language code (ETLW)
Machine Change Levels (SAUS)
Maintenance Checkoff List
Manchester Central Library (SAUO)
Manufacturing Control Language - Computer science (MCD)
Manufacturing Cost Level (ACAE)
Marine Corps League (EA)
Marine Cylinder Lubricant - Fuels and lubricants
Mass Change Log (MCD)
Master Change Log
Master Clear Line (IAA)
Master Component List (MCD)
Master Configuration List
Master Control List
Master of Canon Law (PGP)
Master of Civil Law
Master of Comparative Law
Materials Characterization Laboratory - Research center (RCD)
Mathematics Computation Laboratory - General Services Administration
Mature Corpus Luteum - Medicine (MELL)
Mauritius Congress of Labour (SAUO)
Maximum Concentration Limits
Maximum Contaminant Level
Maximum Contaminant Levels
Maximum Contaminant Limits
McClellan Central Laboratory (MCD)
McLaughlin Gun Manufacturing - NCIC firearms make code (NCIC)
McNeil River - Alaska - Seismograph station code, US Geological Survey (SEIS)
Mechanical - Telegraphy (PCTE)
Media Communication Lab (SAUS)
Media Communication Laboratory (SAUO)
Medial Collateral Ligament - Anatomy
Medial Cruciate Ligament - Anatomy
Medical Aviation Services Ltd. - British - ICAO designator (FAAC)
Medical College of Ohio at Toledo, Toledo, OH - OCLC symbol (OCLC)
Memory Control and Logging - Hewlett-Packard Co.
Memory Core Loader (VLIE)
Mercury Communications Limited (SAUO)
Message Control Language - Computer science
Metal Control Laboratories (SAUO)
Metal Crystal Lattice
Metropolitan Central Library (SAUO)
Michigan Compiled Laws (AAGC)
Micro-Code Language (VLIE)
Microcomputer Center and Library - Wisconsin State Department of Public Instruction - Information service or system (IID)
Microcomputer Center/Library (SAUO)
Microcomputer Language - Computer science (ECII)
Microprogram Control Logic - Computer science (MDG)
Microsoft Compatibility Laboratories (VLIE)
Microsoft Compatibility Labs
Microwave Cavity Laboratories (SAUO)
Microwave Cavity Laboratory (IAA)
Mid-Canada Line - RADAR warning chain of fence across Canada; sometimes called the McGill Fence
Midclavicular Line - Medicine
Midcostal Line - Medicine
Mid Course Late (ACAE)
Mineral Constitution Laboratories - Pennsylvania State University - Research center (RCD)
Miniature Cartridge Light
Mini Circuits Laboratory (IAA)
Minimal Computer Load
Minimum Clear Length (ACAE)
Ministering Children's League - Australia
Ministry of Culture (OGA)
Minority Carrier Lifetime - Solar cell technology
Missile Continuity Loop (MCD)
Mobilization Cross-Leveling (SAUO)
Mobilization Cross-Leveling System - Military technology (DDF)
Modified Chest Lead - Medicine
Molten-Caustic-Leaching - Coal technology
Monitor Control Language - Computer science (ELAL)
Moore & McCormack Lines, Inc. (SAUO)
Moore Corp. Ltd. - NYSE symbol - Toronto Stock Exchange symbol (SPSG)
Moore McCormack Resources, Inc. (SAUO)
Most Comfortable Level - Referring to sound level - Otorhinolaryngology (DAVI)
Most Comfortable Loudness Test - Audiometry
Moving Coil Loudspeaker - Electronics
Mucocutaneous Leishmaniasis - Medicine
Multicolor LASER
Multifunctional Composites Laboratory - University of California, Los Angeles (RCD)
Mushroom Canners League (EA)
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