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M

MBB —  MF —  ML — MNET —  MOSB —  MR —  MU

ACRONYM	DEFINITION	CONTRIBUTOR
M	Mega (A prefix meaning multiplied by 1 million) (Symbol)	Langley
m	Milli- (A prefix meaning divided by 1000) (SI symbol)	Langley
M&IE	Meals and Incidental Expenses	Goddard
M&O	Maintenance and Operations	Goddard
M&P	Materials and Processes	Goddard
M&R	Maintenance and Refurbishment	Goddard
M&R	Maintenance and Repair	Langley
M/F	mainframe	Langley
m/s	Meters per second	CASI
M/U	Mock-Up	Langley
MA	Multi-Access	Goddard
MA	Multiple Access (TDRSS Communications Mode)	Goddard
MA	Military Academy, West Point, NY	CASI
MA1	Mercury Flight	CASI
MAAT	Mean Annual Air Temperature	Goddard
MAB	Material Advisory Board, National Research Council, Washington, DC	CASI
MAC	Multi-sensor Air Campaign	Goddard
MACE	Middeck Active Control Experiment	CASI
MACHO	Massive Compact Halo Objects	CASI
MACOS	Modeling of Actively Controlled Optical Systems	Goddard
MACS	Modular Digital Altitude Control System	CASI
MACSAT	Multi Access Communication Satellite	CASI
MAD	Madrid, Spain, DSN Tracking Station	Goddard
MADS	Modular Auxiliary Data System (Space Shuttle)	CASI
MAESA	Measurements of the Atmospheric Effects of Stratospheric Aircraft Experiment	CASI
MAF	Multiple Access Forward	Goddard
MAF	Michoud Assembly Facility (NASA)	CASI
MAG	Magnetometer Instrument (on ACE)	Goddard
MAG	Mission Assurance Guidelines	Goddard
MagCon	Magnetospheric Constellation	Goddard
MAGE	Mechanical Aerospace Ground Equipment	Langley
MAGIC	Machine for Automatic Graphics Interface to a Computer	CASI
MAGSAT	Magnetic Field Satellite (NASA)	Langley
MAGSAT	Magnetic Field Satellite (AEMC)	CASI
MAIDS	Multipurpose Automatic Inspection & Diagnostic System (Army)	CASI
MAKS	Medical Aid Kit/Station	CASI
Maldi-Tof	Matrix assisted laser desorption/ionization time-off-light	CASI
MALS	Medium Intensity Approach Light System	CASI
MALVINE	Manuscripts and Letters via Integrated Networks in Europe	CASI
MAM	Mars Aeronomy Mission	CASI
MAMA	Multi-Anode Microchannel Array	Goddard
MAP	MILSTAR Advanced Processor	Goddard
MAP	Mission Assurance Plan	Goddard
MAP	Multiplexer Access Point	Goddard
MAP	Michigan Airglow Payload	CASI
MAP	Microwave Anisotropy Probe	CASI
MAP	Missed Approach Point	CASI
MAP/WINE	Middle Atmosphere Program/Winter in Northern Europe	CASI
MAPS	Magnetometer Pointing System	Goddard
MAPS	Measurement of Air (or Atmospheric) Pollution from Satellites	Langley
MAPS	Measurement of Air Pollution from Satellite (Shuttle payload)	CASI
MAPTIP	Marine Aerosol Properties and Thermal Imager Performance Trial	CASI
MAR	Mission Analysis Room	Goddard
MAR	Multiple Access Return	Goddard
MAR	Middeck Accommodations Rack	CASI
MARA	Multimode Airborne Radar Altimeter	CASI
MARBI	Machine Readable form of Bibliographic Information	CASI
MaRC	Machine Readable Cataloging	Goddard
MARC	Machine-Readable Cataloging (Library of Congress)	Langley
MARCI	Mars Color lmager	Goddard
MarGI	Mars Geochemical Instrument,	CASI
MARS	Manned Aerodynamic Reusable Spaceship	CASI
MARS	Mission to America's Remarkable Students (To fly on STS101)	CASI
MARS	Mobile Atlantic Range Station	CASI
MARSAT	Mars Aero-stationary Relay Satellite	CASI
MARSEN	Maritime Remote Sensing (1981)	CASI
MART	Math modeling And Reliability Transducers (for sonar arrays)	CASI
MAS	MODIS Airborne Simulator	Goddard
MAS	Multiple Award Schedule	Goddard
MAS	Mechanical Actuation System (Space Shuttle)	CASI
MAS	Millimeter-wave Atmosphere Sounder	CASI
MASC	Mission and Safety Critical	CASI
MASE	System Analysis/System Engineering (SEI)	Langley
MASER	Microwave Amplification by Stimulated Emission of Radiation	CASI
MASIS	Monitor and Science Instrument Simulator	Goddard
MASS	Medium Acquisition Sun Sensor	Goddard
MASS	Mesoscale Atmospheric Simulation System	Langley
MAST	Management and Supervisory Training Program	Langley
MAST	Magnetic Annular Shock Tube	CASI
MAST	Missile Automatic Supply Technique	CASI
MAT	Multiple Access Transponder	Goddard
MATCALS	Marine’s Air Traffic Control and Landing System	Goddard
MATCON	Microwave Aerospace Terminal Control	CASI
MATE	Materials for Advanced Turbine Engines	CASI
MATRA	Matra Marconi Space (French Electronics Company)	Goddard
MATTS	Multiple Airborne Target Trajectory System	CASI
MAUADEE	Mars Upper Atmosphere Dynamics Energetics and Evolution	Goddard
MAUP	Modifiable Arial Units Problem	CASI
MAW	Mission Adaptive Wing	CASI
MAWP	Maximum Actual Working Pressure	Goddard
MAWP	Missed-Approach Waypoint	CASI
MAX	Microwave Anisotropy Experiment	Goddard
Max91	(Coordinated Solar Research Program)	CASI
MAXIM	Microarcsecond X-ray Imaging Mission	Goddard
MAZAL	(Modification of Polytaz)	CASI
		back to top
MBB	Messerschmitt-Boelkow-Blohm	CASI
MBE	Molecular Beam Epitaxy	Langley
MBE	Molecular Beam Epitaxial	CASI
MBLA	Multi-Beam Laser Altimeter	Goddard
MBO	Management by Objectives	CASI
MBP	Master Buy Plan	Goddard
MBS	Megabits per Second	CASI
MBS	Microbial Bioreactor Systems	CASI
MBS	Mobile Remote Servicer Base System	CASI
MC	Magnetospheric Constellation	Goddard
MC	Mechanism Controller	Goddard
MC	Memory Controller	Goddard
MC	Minor Cycle	Goddard
MCA	Main Combustion Assembly	CASI
MCA	Minimum Crossing Altitude	CASI
MCA	Motor Control Assembly (Space Shuttle)	CASI
MCAS	Micro Communications and Avionics System	Goddard
MCC	Management Conference Center	Goddard
MCC	Mission Control Center	CASI
MCC	MMP Control Computer	Goddard
MCC	Midcourse Correction	CASI
MCC-H	Mission Control Center-Houston)	Goddard
MCCS	Mission Controls and Communications System	Goddard
MCDS	Multi-Function CRT Display System	Goddard
MCE	Monitor and Control Electronics	Goddard
MCEB	Marine Corps Equipment Board, Quantico, VA	CASI
MCEP	Multi-Cultural Education Program	Goddard
MCF	Metadata Content Framework	CASI
MCG	Magnetocardiographs	CASI
MCG	Metal Coated Graphite	CASI
MCG	Millimeter wave Contrast Guidance	CASI
MCG	Morphological Catalogue of Galaxies	CASI
MCH	Memory and Command Handler	Goddard
McIDAS	Man-computer Interactive Data Access System	CASI
MCLFDC	Marine Corps Landing Force Development Center, Quantico, VA	CASI
MCLT	Multicultural Leadership Team	Langley
MCM	Multi-Chip Module	Goddard
MCO	Mars Climate Observer	CASI
MCP	Micro-Channel Plate	Goddard
MCP	Mode Control Panel	Langley
MCP	Modular Component Prediction	CASI
MCP/PMT	Microchannel Plate/Photomultiplier Tube	CASI
MCPF	Modified Coupled Pair Functional (quantum chemistry)	CASI
MCR	Mission Confirmation Review	Goddard
MCR	Military Compact Reactor	CASI
MCS	Mesoscale Convective System	Goddard
MCS	Mission Control System	Goddard
MCSA	Mir Cooperative Solar Array	Goddard
MCSA	Multi-channel Spectrum Analyzer	CASI
MCSCF	Multi-configuration Self Consistent Field (AF)	CASI
MCSST	Multi-Channel Sea Surface Temperature	CASI
MCTV	Man Carrying Test Vehicle	CASI
MCU	Mechanisms Control Unit	Goddard
MCU	Message Control Unit	Goddard
MCU	Micro-Controller Unit	Goddard
MD	Middeck	CASI
MDA	Mechanisms Drive Assembly	Goddard
MDA	Minimum Descent Altitude	CASI
MDAC	McDonnell Douglas Aerospace Company	Goddard
MDAC	McDonnell Douglas Aircraft Corporation	Langley
MDA-HB	McDonnell Douglas Aerospace – Huntington Beach	Goddard
MDB	Multiplexed Data Bus	Goddard
MDBMS	Multimedia Data Base Management System	CASI
MDE	Mechanical Drive Electronics	Goddard
MDE	Mechanisms Drive Electronics	Goddard
MDE	Motor Drive Electronics	Goddard
MDF	Minimum Detectable Flux	Goddard
MDF	Mammalian Development Facility	CASI
MDI	Mechanical Design Integration	Goddard
MDI	Michelson Doppler lmager	Goddard
MDIM	Micrometeoroid Debris Impact Monitor	Langley
MDIS	Modeling, Data, and Information System	CASI
MDM	Multiplexer/Demultiplexer	Goddard
MDO	Multidisciplinary Optimization	CASI
MDP	Multiplexing Data Processor	Goddard
MDR	Maximum Detectable Rigidity	Goddard
MDR	Mission Design Review	Goddard
MDRA	Mission Definition and Requirements Agreement	Goddard
MDS	Medium Deep Survey	Goddard
MDS	Microwave Design System	Goddard
MDS	Mircroprocessor Development System	Goddard
MDSCC	Madrid Deep Space Communications Complex	Goddard
ME	Main Engine	Goddard
ME	Message Error	Goddard
ME	Minimum Energy	Goddard
MEA	Main Engine Assembly	Goddard
MEA	Metal Edge Amplifier	CASI
MEA	Minimum En Route (IFR) Altitude	CASI
MEA	Monoethanolamine	CASI
MEADS	Medium Extended Air Defense System	Langley
MEAM	Modified Embedded Atom Method	CASI
MEB	Main Electronic Box	CASI
MEC	Management Education Center	Goddard
MEC	Miniature Embedded Converters	Goddard
MEC	Main Engine Controller (Space Shuttle)	CASI
MECB	Manufacturers Evaluation and Control Board	Goddard
MECO	Main Engine Cutoff	CASI
MED	Minority Enterprise Development	Langley
MED	Mobile Energy Depot	CASI
MEED	Microbial Ecology Evaluation Device	CASI
MEEP	Mir Environmental Effects Payload	Langley
MEF	Materials Exposure Facility	Langley
MEG	Magnetoencephalogram	CASI
MEH	University of Chicago Electron Instrument on ISEE-3/lCE	Goddard
MEIDEX	Mediterranean Israeli Dust EXperiment	CASI
MEL	Master Equipment List	Goddard
MELA	Marine Engineering Lab, Annapolis, MD	CASI
MELCO	Mitsubishi Electronic Co.	Goddard
MELS	Military Electronics Lab (Sweden)	CASI
MELTER	Mesosphere Lower Thermosphere Explorer	CASI
MELV	Medium Expendable Launch Vehicle	Goddard
MEM	Main Electronics Module	Goddard
MEM	Mars Excursion Module	CASI
MEM	Maximum Entropy Method	CASI
MEMBRANE	Permeable Membrane for Plant Nutrient Delivery System	CASI
MEMS	Micro Electro Mechanical Sensor	Goddard
MEMS	Micro-Electro Mechanical Systems	CASI
MEO	Medium Earth Orbit	CASI
MEOP	Maximum Expected Operating Pressure	Goddard
MEP	Management Education Program	Goddard
MEPSI	Microelectromechanical Systems-Based Pico satellite Inspector	CASI
MER	Mission Evaluation Room	Goddard
MERIS	Medium Resolution Imaging Spectrometer (ESA)	Goddard
MERLIN	Multi-Element Radio Link Interferometer Network	CASI
MESA	Miniature Electrostatic Accelerometer	CASI
MESA	Modularized Equipment Stowage Assembly (APOLLO/NASA)	CASI
MESFET	Metal-Semiconductor Field Effect Transistor	CASI
MESS	Mesoscale and Severe Storms Computer System	CASI
MESSR	Multispectral Electronic Self-Scanning Radiometer	CASI
MESUR	Mars Environmental Survey	CASI
MET	Mechanical Engineering Team	Langley
MET	Mission Elapsed Time (Space Shuttle)	CASI
METEOR 3M-1	Meteorological Satellite (Russian Operational Weather Satellite)	Goddard
METEORS	Mesosphere-Thermosphere Emissions for Ozone Remote Sensing	Langley
METEOSAT	(Meteorological satellite for Europe European counterpart to GOES)	CASI
METOP	Meteorological Operational Satellite	Goddard
METRE	Mesosphere-Thermosphere Rocket Experiment	Langley
METRI	Meteorological Research Institute (Korea)	Goddard
METS	Modular Equipment Transporter System	CASI
METSAT	Meteorological Satellite	CASI
MeV	Mega electron Volt	CASI
MEVDP	Modified Element Volume Dose Program	Goddard
		back to top
MF	Major Frame	Goddard
MF	Minor Frame	Goddard
MFE	Magnetic Field Explorer	CASI
MFG	Manufacturing	Langley
MFI	Magnetic Field Instrument	Goddard
MFOP	Major Facilities Operations Plan	Goddard
MFR	Multifunction Receiver	Goddard
MFR	Manipulator Foot Restraint	CASI
MFS	Multi-Functional Structure	Goddard
MFT	Magnetic Field Explorer	CASI
MFTF	Mirror Fusion Test Facility	CASI
MGA	Medium Gain Antenna	Goddard
MGCO	Mars Geoscience/Climatology Orbiter	CASI
MGM	Mechanics of Granular Materials	CASI
MGMT	management	Langley
MGP	Manufactured Gas Plants	CASI
MGR	Manager	Langley
MGS	McMurdo Ground Station	Goddard
MGS	Mars Global Surveyor	CASI
MGS	Missile Guidance Set	CASI
MGSE	Mechanical Ground Support Equipment	Goddard
MGSS	Mechanical Ground Support System	Goddard
MGSS	Manned Geosynchronous Spacecraft Servicer	CASI
MHD	Magnetohydrodynamic Conversion (Nuclear energy)	Langley
MHD	Magnetohydrodynamic(s)	CASI
MHOS	Reciprocal OHMS	CASI
MHRT	Mission Highlights Resources Tape	CASI
MHS	Microwave Humidity Sounder	CASI
MHSI	Mason & Hanger Services, Inc. (LaRC Telephone Book)	Langley
MHW	Multi-hundred Watt (usually referring to generators)	CASI
MHz	Megahertz (Mc/S)	CASI
MIB	Management Information Base	Goddard
MIC	Memory Interface Card	Goddard
MIC	Memory Interface Controller	Goddard
MIC	Microwave Integrated Circuits	CASI
MICB	Mission Integration Control Board	Goddard
MICD	Interface Control Drawing, Mechanical	Goddard
MICM	Multivariable Cost Model	Goddard
MICS	Management Information and Control System	Goddard
MICTS	Management Information Cost Tracking System	Goddard
MID	Mechanical Interface Drawing	Goddard
MIDAS	Materials in Devices as Superconductors	Langley
MIDEX	Medium-Class Explorer	Goddard
MIDIM	Micrometeroroid and Debris Impact Monitor	Langley
MIE	Master Interface Electronics	Goddard
MIE	Model Institutions for Excellence	CASI
MIE-E	MIE-Enhanced	Goddard
MIE-E	MIE-EOS	Goddard
MIG welding	Molybdenum Inert Gas Welding	CASI
MIL	Merritt Island, Florida, STDN Station	Goddard
mil	Milli-Inch	Langley
MILA	Merritt Island Launch Area (Florida STDN Station)	Goddard
MILC	Modified Intermediate Load Cycle	Goddard
MILSTD	Military Standard	CASI
MIMD	Multiple Instructions/Multiple Data	CASI
MIMI	Magnetospheric Imaging Instrument	CASI
MIMO <