MR

MR

1. (metrology) Symbol for the megarayleigh, a unit of measurement of luminous flux, used to measure air glow.

MR

1. (metrology) Symbol for the megaröntgen (or megaroentgen), an obsolete unit of measurement of radio-active dose.

MR

1. (international standards) ISO 3166-1 alpha-2 country code for Mauritania.

MR

1. World Meteorological Organization country code for Martinique.

MR

1. Library of Congress MARC country code for Morocco.

MR

1. (UK, rail transport) Initialism of Midland Railway.

   Synonym: Midland

MR

1. Clipping of 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. (pharmacology, medicine) Initialism of modified release.
   • 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.

3. (cardiology) Initialism of mitral regurgitation.
4. (biochemistry) Initialism of mineralocorticoid receptor.
5. (prison system) Initialism of mandatory release.
6. (sports) Initialism of meeting record, the best performance at all occurrences of a particular athletic meeting.
7. (US military) Acronym of memorandum for the record, memorandum for record, memo for the record, or memo for record.

• (US military): MFR

• (mitral regurgitation): MI

MR (not comparable)

1. (education, special education) Initialism of mentally retarded.

• RM, rm, rm.

MR

1. Initialism of magnetická rezonance: MRI

MR

1. Initialism of Menntaskólinn í Reykjavík (“Reykjavik Junior College”).

• (SK Standard/Seoul) IPA^(key): [e̞ma̠ɭ]
• Phonetic hangul: [에말]

MR • (MR)

1. (music) This term needs a translation to English. Please help out and add a translation, then remove the text {{rfdef}}.

• AR (AR)