MR

Look up Mr. or mr in Wiktionary, the free dictionary.

MR, Mr, mr, or mR may refer to:

Mr. an honorific title of men

Arts and entertainment

Mr. (artist), a Japanese artist
MR (Marina and Rainer) (1989), a one-act chamber opera by Nikolai Korndorf
Model Railroader, a US hobby magazine

Businesses and organizations

Menntaskólinn í Reykjavík, the oldest junior college in Iceland.
Air Mauritanie (IATA code)
Master Replicas, a maker of prop replicas
Metropolitan Railway, a London suburban railway
Midland Railway, a United Kingdom railway
Magyar Rádió, a Hungarian radio station
Mouvement Réformateur, a Belgian political party

Language

Marathi language (ISO 639-1 code "mr")
McCune–Reischauer, a system of romanization of the Korean language

Law

Master of the Rolls

Places

Morocco country code (Library of Congress MARC standards)
Martinique country code (World Meteorological Organization)
Mauritania country code (ISO 3166-1 Alpha-2, FIPS 10-4)
- .mr, the country code top level domain (ccTLD) for Mauritania
Menntaskólinn í Reykjavík, a secondary school in Iceland

Science and technology

Biology and medicine

Magnetic resonance imaging, a medical imaging technique
Mendelian randomization, a way of using genetic information to estimate causal effects
Mental retardation
Mineralocorticoid receptor
Mitral regurgitation of bloodflow in the heart

Computing

.mr, the country code top level domain (ccTLD) for Mauritania
Mixed reality, the merging of real and virtual worlds

Mathematics

Mathematical Reviews, a journal and database

Physics

Magnetoresistance, change in electrical resistance due to a magnetic field
Magnetic resonance (disambiguation), a physical phenomenon with many applications
Megarayleigh (MR), a unit of luminous flux
Milliroentgen (mR), an obsolete unit of radioactive exposure

Transportation

Nissan MR engine
Rear mid-engine, rear-wheel-drive layout, an automotive layout

See also

Mister (disambiguation)

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