M4
From Wikipedia, the free encyclopedia
M4 or M-4 may refer to:
In computers:
- m4 (computer language), a macro processing language
- GNU m4, the GNU version of the m4 language
In firearms and military equipment:
- M4 Carbine, an assault rifle
- M4 Sherman, the primary tank used by the Americans in World War II
- Benelli M4 Super 90, a combat shotgun
- M2/M4 Selectable Light-weight Attack Munition (SLAM), a land mine
- M4 (cipher), a variant of the Enigma machine
- M4 flame fuel thickening compound, a substance used in fire bombs and incendiary weapons
- Myasishchev M-4, a Soviet strategic bomber
- M4 SLBM, a French submarine-launched ballistic missile
- Spectre M4, a submachine gun
In science:
- Messier 4 (M4), a globular cluster in the constellation Scorpius
In transportation:
- Metroad 4 (M4), a metroad in Sydney, Australia
- M4 Western Motorway, a segment of Metroad 4 in central Sydney, Australia
- M4 motorway, a motorway in the United Kingdom that links London with South Wales
- M4 motorway, a motorway-grade section of the N4 road in the Republic of Ireland
- M-4 (Michigan highway), a former designation for the M-134 and M-10 Michigan state highways
- M4 motorway (Russia), another name for the Don Highway in Russia
- M4 motorway (Pakistan), a proposed motorway for Pakistan
- M4 Vacamatic, a semi-automatic transmission made by Chrysler
In rail:
- M4 Line, part of the Bucharest Metro, Romania
- M4, a subway car; 220 were delivered to SEPTA by Adtranz in 1999-2000
In hardware:
- M4 screw, a metric screw
In economics:
- M4 money supply, the total amount of money in bank accounts and in circulation in the United Kingdom