MSR may refer to:

Science and technology

* Macrophage scavenger receptor, a receptor found in macrophages *

Magnetic stripe reader The term digital card can refer to a physical item, such as a memory card on a camera, or, increasingly since 2017, to the digital content hosted as a virtual card or cloud card, as a digital virtual representation of a physical card. They share ...

, a device used to read magnetic stripe cards such as credit cards *

M–sigma relation The M–sigma (or ''M''–''σ'') relation is an empirical correlation between the stellar velocity dispersion ''σ'' of a galaxy bulge and the mass M of the supermassive black hole at its center. The ''M''–''σ'' relation was first presented ...

, in astrophysics *

Mars sample return A Mars sample-return (MSR) mission is a proposed mission to collect rock and dust samples on Mars and sample-return mission, return them to Earth. Such a mission would allow more extensive analysis than that allowed by onboard sensors. The thr ...

mission, a spaceflight mission to return rock and dust samples collected on Mars * Mirror self-recognition, in animals through the mirror test *

Molten salt reactor A molten salt reactor (MSR) is a class of nuclear fission reactor in which the primary nuclear reactor coolant and/or the fuel is a molten salt mixture. Only two MSRs have ever operated, both research reactors in the United States. The 1950's ...

, an advanced nuclear reactor design

Computing

* Machine state register, a register used in PowerPC architectures *

Model-specific register A model-specific register (MSR) is any of various control registers in the x86 instruction set used for debugging, program execution tracing, computer performance monitoring, and toggling certain CPU features. History With the introduction of th ...

, a feature in x86 processors * Microsoft Reserved Partition, a space-management partition on a computer storage device * Mining software repositories, a field that analyzes the rich data available in software repositories

Entertainment

MSR Studios Sound on Sound Studios, formerly known as MSR Studios (Manhattan Sound Recordings) is a photography and movie producing company recording facility in Montclair, New Jersey. Its forebear, MSR Studios, was located in Manhattan, just outside Times Sq ...

, a New York recording studio *

The Most Serene Republic The Most Serene Republic is a Canadian indie rock music group formed in 2003 in Milton, Ontario. The band takes its name from the sobriquet of Venice under the Doges, which was regarded as " The Most Serene Republic of Venice". Members Curre ...

, a Canadian indie rock band * ''

Metropolis Street Racer ''Metropolis Street Racer'' (''MSR'') is a racing video game developed by Bizarre Creations and published by Sega exclusively for Dreamcast. The game was intended to be a Dreamcast launch title, however, due to numerous delays it was not release ...

'', a Dreamcast racing game *

Mid-season replacement In American network television scheduling, a mid-season replacement is a television show that premieres in the second half of the traditional television season, usually between December and May. Mid-season replacements usually take place after a ...

, a television series that premieres in the second half of a traditional season *'' Metroid: Samus Returns'', a video game * Mulder Scully Romance, the relationship of the main characters of the television series ''

The X-Files ''The X-Files'' is an American science fiction drama television series created by Chris Carter. The series revolves around Federal Bureau of Investigation (FBI) Special Agents Fox Mulder (David Duchovny) and Dana Scully (Gillian Anderson), who ...

Organizations and companies

Market Street Railway (nonprofit) Market Street Railway is San Francisco Municipal Railway's (Muni) 1,200-member non-profit preservation partner. It relies on private contributions to help maintain San Francisco’s fleet of historic streetcars in service on the E Embarcadero ...

, a historic preservation organization in San Francisco, California, U.S. * Microsoft Research, the research division of Microsoft * Mountain Safety Research, a US company specializing in outdoor equipment * Mouvement social révolutionnaire, the French fascist party Revolutionary Social Movement * Movimiento Social Republicano, the Republican Social Movement political party in Spain * MSR - The Israel Center for Medical Simulation, Israeli institute for Simulation-Based Medical Education

Places

Most Serene Republic Most Serene Republic ( la, Serenissima Respublica) ( it, Serenissima Repubblica) is a title attached to a number of European states through history. By custom, the appellation "Most Serene" is an indicator of sovereignty (see also Serene Highnes ...

, a title in the name of various countries * Montserrat (ISO 3166-1 code)

Transportation

* EgyptAir (ICAO designator), an Egyptian airline *

Main supply route A main supply route (MSR) is the route or routes designated within an area of operations upon which the bulk of traffic flows in support of military operations and humanitarian operations. MSR is a term that is also used in insurgency and irregul ...

, a military operations supply route *

Market Street Railway (transit operator) The Market Street Railway Company was a commercial streetcar and bus operator in San Francisco. The company was named after the famous Market Street of that city, which formed the core of its transportation network. Over the years, the company ...

, a defunct company in California, U.S. * Maserati, a luxury sports car company * Michigan Shore Railroad, US * Muar State Railway, a defunct railway formerly operating in the Johor Sultanate, British Malaya *

Mumbai Suburban Railway The Mumbai Suburban Railway ( Marathi: मुंबई उपनगरीय रेल्वे) (colloquially called local trains or simply locals) consists of exclusive inner suburban railway lines augmented by commuter rail on main lines ser ...

, India *

Muş Airport Muş "Sultan Alparslan" Airport is an airport in Muş, Turkey Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula i ...

(IATA airport code), Turkey

Weapons

* Modern sporting rifle or AR-15 style rifle * Modular Sniper Rifle, a sniper rifle produced by Remington Arms * Magnum Sniper Rifle or Accuracy International Arctic Warfare, a bolt-action sniper rifle

Other uses

* Market Stability Reserve, a part of the

European Union Emission Trading Scheme The European Union Emissions Trading System (EU ETS) is a "cap and trade" scheme where a limit is placed on the right to emit specified pollutants over an area and companies can trade emission rights within that area. It covers around 45% of th ...

* Milan–San Remo, an annual bicycle race *

Mortgage servicing rights A mortgage servicer is a company to which some borrowers pay their mortgage loan payments and which performs other services in connection with mortgages and mortgage-backed securities. The mortgage servicer may be the entity that originated the mor ...

, the rights to collect mortgage payments from a borrower for the benefit of the lender *

Meyer Shank Racing Meyer Shank Racing (formerly Michael Shank Racing) is an American auto racing organization that competes in the IndyCar Series and IMSA SportsCar Championship. History Atlantic Championship Michael Shank as an owner of Michael Shank Racing, ...

, an American auto racing team {{disambiguation