Music

• Modena City Ramblers
  Modena City Ramblers
  Modena City Ramblers is an Italian folk band founded in 1991. Their music is heavily influenced by Celtic themes, and can be compared to folk rock music. The band has sold over 500,000 albums...
  
  , an Italian folk rock band
• My Chemical Romance
  My Chemical Romance
  My Chemical Romance is an American alternative rock band from New Jersey, formed in 2001. The band consists of lead vocalist Gerard Way, guitarists Ray Toro and Frank Iero, and bassist Mikey Way and have a diverse sound incorporating elements of punk, emo, glam metal, and progressive rock...
  
  , an American rock band
• Middle Class Rut
  Middle Class Rut
  Middle Class Rut, also known as MC Rut, is an American alternative rock band consisting of vocalist/guitarist Zack Lopez and vocalist/drummer Sean Stockham. They were formed in Sacramento, California in December 2006...
  
  , an American rock band

Organisations

• Maryport and Carlisle Railway
  Maryport and Carlisle Railway
  The Maryport & Carlisle Railway was a small but highly profitable railway formed in 1836 to connect the town of Maryport to the county town of Carlisle and to allow the output of collieries inland of Maryport to be more cheaply transported to Maryport for oward movement by sea. Its headquarters...
  
  , a pre-gouping British railway company
• Muslim Community Radio
  Muslim Community Radio
  Muslim Community Radio or MCR, is a radio station based in London, United Kingdom founded in 1998. The station runs through an AM Radio, at 1143 AM , and only broadcasts annually during the holy month of Ramadan...
  
  , a radio station based in London, UK
• Middle Common Room, a postgraduate student organization
• Marine Commando Regiment
  Marine Commando Regiment
  The creation of a Canadian Marine Commando Regiment was proposed as part of the 2006 Canada First Defence Strategy. It was speculated that the unit would be based at Canadian Forces Base Comox, and have an initial strength of approximately 250 members...
  
  , a military unit in the Canadian Forces

Science

• Methyl coenzyme M reductase, an enzyme that occurs in methanogenic archea
• Mineralocorticoid receptor
  Mineralocorticoid receptor
  The mineralocorticoid receptor , also known as the aldosterone receptor or nuclear receptor subfamily 3, group C, member 2, is a protein that in humans is encoded by the NR3C2 gene that is located on chromosome 4q31.1-31.2.MR is a receptor with high affinity for mineralocorticoids...
  
  , a receptor with high affinity for mineralocorticoids, belonging to the steroid hormone receptor family
• Multi-component reaction
  Multi-component reaction
  In chemistry, a multi-component reaction , sometimes referred to as a "Multi-component Assembly Process" , is a chemical reaction where three or more compounds react to form a single product...
  
  , a type of chemical reaction with more than 2 inputs

Technology

• MCR, an ARM architecture
  ARM architecture
  ARM is a 32-bit reduced instruction set computer instruction set architecture developed by ARM Holdings. It was named the Advanced RISC Machine, and before that, the Acorn RISC Machine. The ARM architecture is the most widely used 32-bit ISA in numbers produced...
  
   CPU instruction - a register transfer to co-processor
• Critical Mach number
  Critical Mach number
  In aerodynamics, the critical Mach number of an aircraft is the lowest Mach number at which the airflow over any part of the aircraft reaches the speed of sound....
  
   (Mcr) - the speed at which airflow over a structure becomes partly supersonic
• Maximum Continuous Rating
  Maximum Continuous Rating
  Maximum continuous rating is defined as the maximum output that a generating station is capable of producing continuously under normal conditions over a year. Under ideal conditions, the actual output could be higher than the MCR....
  
  , a measure of the output performance of a generating station

Other

• Medical care ratio
  Medical care ratio
  Medical care ratio , also known as medical cost ratio, medical loss ratio, and medical benefit ratio, is a metric used in managed health care and health insurance to measure medical costs as a percentage of premium revenues...
  
  , a metric used in managed health care
• Master control room, a room for routing all incoming and outgoing signals
• Minimum capital requirement
  Minimum capital requirement
  Academics, practitioners, and regulators all recognise and agree that capital is required for banks to operate smoothly because capital provides protection...
  
  , the minimum capital that insurance companies and banks are required to hold
• Mission capable rate, a performance metric for military operations
• My Coke Rewards
  My Coke Rewards
  My Coke Rewards is a customer loyalty marketing program for Coca-Cola soft drinks. Customers enter codes found on specially marked packages of Coca-Cola products on a website. Codes can also be entered "on the go" by texting them from a cell phone...
  
  , a Coca-Cola loyalty scheme
• Miguel Caballero Rojo, a character in the Tekken series of fighting games
• My Camp Rock
  My Camp Rock
  My Camp Rock is a singing competition based on the Disney Channel Original Movie, Camp Rock. Two series have been broadcast in the United Kingdom and two series in 2009 and 2010 in Sweden, Denmark and Norway as My Camp Rock Scandinavia...
  
  , a programme on Disney Channel