MR

MR

1. Country code for Mauritania (both via ISO 3166-1 alpha-2 and FIPS 10-4).
2. World Meteorological Organization country code for Martinique.
3. Library of Congress MARC country code for Morocco.
4. (metrology) Symbol for the megarayleigh, a unit of measurement of luminous flux, used to measure air glow.
5. (metrology) Symbol for the megaröntgen (or megaroentgen), an obsolete unit of measurement of radio-active dose.

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1. Short for MRI.
   • 2007 March 30, Elizabeth Mossis, M.D. (guest),“Breast Cancer Screening Guidelines”, Talk of the Nation: Science Friday, Ira Flatow (host), National Public Radio
2. (education, special education) Mentally retarded
3. (pharmacology, medicine) Lua error in Module:parameters at line 376: Parameter 1 should be a valid language or etymology language code; the value "modified release" is not valid. See WT:LOL and WT:LOL/E.
   • 2014 — Seufert, Ken. (April 2014) "The New Dawn of Pharmaceutical Manufacturing: Innovative Solutions for Unprecedented Challenges", American Pharmaceutical Review, 17(3):8.

     Controlled release (CR), modified release (MR), orally disintegrating tablets (ODT), and other innovative dosage forms are still of interest to both pharmaceutical producers and suppliers.

4. (prison system) (deprecated use of |lang= parameter) Initialism of mandatory release.

• rm, RM

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1. (deprecated use of |lang= parameter) Initialism of magnetická rezonance.: MRI

MR

1. Menntaskólinn í Reykjavík (Reykjavik Junior College)