MDR

'''MDR''' may refer to: {{TOC right}}

==Biology== * MDR1, an ATP-dependent cellular efflux pump affording multiple drug resistance * Mammalian diving reflex * Medical device reporting * Multiple drug resistance, when a microorganism has become resistant to multiple drugs

==Technology== * Managed detection and response, a type of computer managed security service * Massive Data Repository, a data storage facility for the United States' Intelligence Community * Sony MDR-V6, a line of studio headphones designed by Sony * Medical device reprocessing * Memory data register, a hardware register where data to be transferred to/from memory are temporarily stored * Mental dead reckoning * Merchant discount rate, dues, fees, assessments, network charges and mark-ups that merchants are required to pay for accepting credit and debit cards * Metadata registry, a central location in an organization where metadata definitions are stored and maintained in a controlled method * Metadata repository, a database created to store metadata * Mini D ribbon, a cable connector type * Motion detection radar * Multifactor dimensionality reduction, an algorithm for detecting interactions * Desert Tech MDR, a bullpup rifle * MDR, programming language

==Other== * Moldavian Democratic Republic, a state existing between 1917 and 1918, predecessor of modern Moldova * mdr is the ISO 639 language code for the Mandar language * M. D. Ramanathan (1923–1984), Indian singer known as MDR * Mandatory declassification review, part of the process of removing the classification of a document * Medical Device Regulation (EU2017/745), a 2017 European Union regulation covering medical devices * {{lang|de|Mitteldeutscher Rundfunk|italic=no}}, German public broadcaster * {{lang|fr|Mort de rire}}, a French expression for 'dead of laughing' (equivalent to English ''LOL'') * {{lang|fr|Mouvement démocratique républicain}} (Republican Democratic Movement), former political party of Rwanda * Major district road in the state of Andhra Pradesh, India * Movement for Democracy and Reconstruction, political party in Liberia * Main development region, the area of the Atlantic Ocean in which the majority of its tropical cyclones form

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