M3

M3, M-3 or M03 may refer to:

• M3 (economics), a measure of the money supply
• Metribolone
• M3, a metric screw size

Science

• Cubic metre (m³), a unit of volume
• Messier 3 (M3), a globular cluster in the constellation Canes Venatici
• M3 Receptor, an acetylcholine muscarinic receptor
• ATC code M03 Muscle relaxants, a subgroup of the Anatomical Therapeutic Chemical Classification System

Computers and electronics

• Modula-3 (M3), a programming language
• M3, a BBC peak programme meter standard used for measuring the volume of audio broadcasts
• M3, amateur Radio callsign prefix in the United Kingdom

Entertainment

• M3 adapter, a Game Boy Advance movie player
• M3 Music Card, a 2007 Chinese company Meizu Flash-based MP3 player
• Metroid 3
• Mother 3, a Japan-only game
• M3 Simply, see Nintendo DS storage devices#R4DS and M3 DS Simply
• M3 Real, see Nintendo DS storage devices#R4DS and M3 DS Simply
• M3 R&B Group (Memphis, Mobile, and Montgomery)
• M3(band), A Korean band group

Transport

• M3 (railcar), a railcar used by the Long Island Rail Road and Metro-North Railroad, United States
• Miles M.3 Falcon, a 1930s British four-seat cabin monoplane
• ABSA - Aerolinhas Brasileiras's IATA airline designator
• BMW M3, a German vehicle produced by BMW

Roads

• M-3 (Michigan highway), a state highway in the Detroit metropolitan area
• M3 (Cape Town), an expressway in Cape Town, South Africa
• M3 motorway, a motorway in England
• M3 motorway (Hungary), a motorway in Hungary
• M3 motorway (Northern Ireland), an urban motorway in Belfast, Northern Ireland
• M3 motorway (Pakistan)
• Russian route M3, another name for the Ukraine Highway in Russia
• M3 freeway or EastLink (Melbourne) in Victoria, Australia
• M3 motorway, a motorway under construction to upgrade the N3 road (Ireland)

Public transport

Rail routes

• M3 Line, a part of the Bucharest Metro, Romania
• Line M3 - Milan Subway (Metropolitana di Milano)
• Line 3 (Budapest Metro), the third line of Budapest Metro, Hungary

Bus routes

• Route M-3 (MTA Maryland), a former bus route in Baltimore, Maryland
• Route M3 (Manhattan), a bus route in Manhattan

Music

• M3 Records, a record label
• Major third (M3), a type of musical interval
• Minor third (m3), a type of musical interval
• M3 (album), an album by Mushroomhead
• M3 (band), an American rock band
• M3, a band that featured former Whitesnake members Bernie Marsden, Micky Moody, and Neil Murray

Military

• 37 mm Gun M3, a light American anti-tank gun
• 105 mm Howitzer M3, an American light artillery piece
• Benelli M3 Super 90, an Italian semi-automatic shotgun
• M3 Fighting Knife a World War II American issue knife
• M3 submachine gun, an American submachine gun
• M3, a code name for a United States military mission at Roosevelt Roads Naval Station in Puerto Rico
• M3 20mm cannon, a United States development of the Hispano-Suiza HS.404

Vehicles

• M3 Amphibious Rig, a German self-propelled amphibious bridging vehicle
• M3 Bradley, an American infantry fighting vehicle
• M3 Grant, a medium tank that was a variant of the M3 Lee
• M3 Half-track, an armored military vehicle
• M3 Lee, an American medium tank
• M3 Scout Car, an American armored vehicle
• M3 Stuart, an American light tank

See also

• 3M (disambiguation)

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