Magnetic Strain Energy
Maintenance Support Equipment - Deep Space Instrumentation Facility, NASA
Major Source of Employment
Major Support Element (DOMA)
Malaysia Shipyard & Engineering (SAUS)
Manila Stock Exchange (EXCG)
Manned Spacecraft Engineer (MCD)
Manston - England - Airport symbol (AD)
Manufacturing Support Equipment (ACAE)
Manufacturing Systems Engineering
Marine Service, Port Lavaca, TX - Manufacturer code for watercraft hull identification number (USCG)
Marshall Energy Ltd. - Vancouver Stock Exchange symbol
Mask Superposition Error - Computer science (IAA)
Massachusetts Studies in English - A publication (ANEX)
Mass Storage Editor - Computer science (MCD)
Master of Sanitary Engineering
Master of Science in Chemical Engineering
Master of Science in Education
Master of Science in Engineering
Master of Software Engineering
Master of Systems Engineering
Materials Science and Engineering (ACAE)
Materiel Status Evaluation - Army (AABC)
McCall and Spero Environmental, Inc. - Commercial firm
Mean Square Error - Statistics
Measurement Systems Engineering, Inc. (EFIS)
Measuring and Stimuli Equipment (NASA)
Mechanical Support Equipment (KSC)
Medical Support Equipment (NASA)
Member of the Society of Engineers - British
Mental Status Examination - Neurology (DAVI)
Merck, Sharp & Dohme - Later, Merck & Co., Inc. Research Laboratory, Rahway , NJ - OCLC symbol (OCLC)
Merit Students Encyclopedia - A publication
Metaphloem Sieve Element - Botany
Mexican Stock Exchange (MHDW)
Microsoft Exchange server (SAUS)
Mid-Song Element - Ornithology
Midwest Stock Exchange - Chicago, IL (EA)
Military Specification Exception
Military Standard Engines
Milk-Sensitive Enteropathy - Medicine
Millennium Science and Engineering, Inc. - Commercial firm
Milwaukee School of Engineering - Wisconsin
Minus Sense (SAA)
Missile Support Element (AABC)
Missile Support Equipment
Mission Staff Engineer (MCD)
Mission Support Element (MCD)
Mississippi Export Railroad Co. - AAR code
Mobile Subscriber Equipment - Military
Modern Ship Equivalent
Montana Society of Engineers (EARSL)
Montreal Stock Exchange (CDAI)
Moose
Morgan Stan Fin 8.40% Cp Uts - NYSE symbol
Morgan Stanley Finance PLC Capital Unit - NYSE symbol (SAG)
M-scan Echocardiogram - Medicine (EDAA)
Multiple Sample Exchanger (SAUS)
Multiple Simultaneous Engagement (MCD)
Multi-Position Small Engine - Automotive engineering
Muscle-Specific Enhancer - Genetics
Muscle-Specific Enolase - Medicine (DMAA)
Muscle Strengthening Exercise (MELL)
Musey - Language code (ETLW)