What does MCR stand for? 

My Chemical Romance

Miscellaneous » Funnies -- and more...

Main Control Room

Governmental » NASA

Michigan Court Rules

Governmental » State & Local -- and more...

Middle Common Room

Community » Housing & Amenities

Magic Carpet Ride

Academic & Science » Chemistry

Middle Combination Room

Governmental » US Government

Minimum Course Requirements

Miscellaneous » Unclassified

Montgomery County Region

Regional » States

Message Completion Rate

Governmental » Military

McCloud Railway Company

Regional » Railroads

Mirror Consistency Recovery

Computing » General Computing

Mississippi Choctaw Rejected

Community

Modified Compliance Review

Community » Educational

Model Court Room

Governmental » Law & Legal

M F S Charter Income Trust Fund

Business » NYSE Symbols

Modular Converters For Regulation

Miscellaneous » Unclassified

Modified Cell Rate

Miscellaneous » Unclassified

Mercy Connection Records

Miscellaneous » Unclassified

Master of Clinical Research

Academic & Science » Academic Degrees

Marketing Communications Resource

Business » Marketing

Magnetic Cell Regenerator

Miscellaneous » Unclassified

Mona City Raceway

Sports » Racing

Mortgage Call Report

Business » Mortgage

Minimum Capital Requirement

Miscellaneous » Unclassified

Mississippi Choctaw Removed

Miscellaneous » Unclassified

Molecular Cancer Research

Medical » Cancer

Mapping Charting And Reproduction

Governmental » Military

MATLAB Component Runtime

Miscellaneous » Unclassified

Medical Center of the Rockies

Medical

Motivation Commitment and Resilience

Miscellaneous » Unclassified

My Chemical Romance's

Academic & Science » Chemistry

My Coke Rewards

Miscellaneous » Unclassified

My Cool Robots

Miscellaneous » Unclassified

Medicare Cost Report

Governmental

Multi Caliber Rifle

Miscellaneous » Unclassified

Master Control Room

Miscellaneous » Unclassified

Mission Confirmation Review

Miscellaneous » Unclassified

Moorea Coral Reef

Miscellaneous » Unclassified

Macroglobulin complement related

Miscellaneous » Unclassified

Magnetic Card Reader

Miscellaneous » Unclassified

Magnetic Chinbar Release

Miscellaneous » Unclassified

Maintenance Control Report

Miscellaneous » Unclassified

Making Cities Resilient

Regional » Cities

Mandatory Commercial Recycling

Governmental » Environmental

Marketing Communication Resource

Business » Marketing

Master Control Records

Miscellaneous » Unclassified

Measurement Control and Regulation

Miscellaneous » Unclassified

Media Copy Request

Miscellaneous » Unclassified

Medical Cannabis Registry

Medical

Meet Chat and Relax

Internet » Chat

Meets College Requirements

Academic & Science » Colleges

Megaport Cloud Router

Miscellaneous » Unclassified

Meta Cognitive Renata

Miscellaneous » Unclassified

Metabolic Clearance Rate

Miscellaneous » Unclassified

Mhe Cagnus Rarchives

Miscellaneous » Unclassified

Michigan Community Resources

Community

Microsoft Container Registry

Computing » Software

Miranda Cosgrove Rocks

Miscellaneous » Unclassified

Mirantis Container Runtime

Miscellaneous » Unclassified

Mission Capable Rate

Miscellaneous » Unclassified

Mission Configurable Rifle

Miscellaneous » Unclassified

Missouri Cancer Registry

Medical » Cancer

Mobile Colistin Resistance

Computing » Mobile

Mobile Collections and Receipts

Computing » Mobile

Mobile Crisis Response

Computing » Mobile

Mobilized Colistin Resistance

Miscellaneous » Unclassified

Modem Control Register

Miscellaneous » Unclassified

Motivation Commitment and Resilence

Miscellaneous » Unclassified

Multi Color Rim

Miscellaneous » Unclassified

Multivariate Curve Resolution

Miscellaneous » Unclassified

Muscarinic Cholinergic Receptor

Miscellaneous » Unclassified

My Catholic Regret

Community » Religion

My Chero Racademia

Miscellaneous » Unclassified

Georgetown Owen Robers Interna, Cayman Islands

Regional » Airport Codes

Macro File

Computing » IT

Management of Customer Relationship

Computing » IT

Mass Colonial Records

Miscellaneous » Unclassified

Master Change Record

Governmental » NASA

Master Cross Reference

Miscellaneous » Automotive

Matchless Crown Racing

Sports » Racing

Matlab Compiler Runtime

Computing » Software -- and more...

Maximum Continuous Rating

Computing -- and more...

Maximum Continuous Ratings

Academic & Science » Mechanics

McCloud River Railroad (McCloud Railway)

Regional » Railroads

Medical College Road

Academic & Science » Colleges

Medical Condition Report

Governmental » Transportation -- and more...

Memory Card Reader

Computing » IT

Memory Configuration Register

Computing » IT

Memory Controller

Computing » IT

Midwest Classic Racing

Miscellaneous » Automotive

Mincor Resources NL

Business » ASX Symbols

Mini Club Romand

Miscellaneous » Automotive

Mini Cooper Register

Miscellaneous » Automotive

Minimum Cell Rate

Miscellaneous » Unclassified -- and more...

Mississippi Choctaw Refused

Miscellaneous » Unclassified

Modular Common Rail

Miscellaneous » Automotive

Moldova Classic Rally

Miscellaneous » Automotive

Monitor Console Routine

Computing » Software

Monthly Classification Ratio

Miscellaneous » Automotive

Motor City Region

Miscellaneous » Automotive

Motor-Cycle Rickshaw

Governmental » Transportation

Multi Channel Receiver

Computing » IT

Multi Channel Routing

Computing » IT

Multi Class Routing

Computing » IT

Multi-Component Reactions

Academic & Science » Chemistry

Multichannel Control Register

Computing » IT

Multiprogrammatic Capability Resource

Computing » IT

Muscle Car Racing

Miscellaneous » Automotive

Muscle Car Restorations

Miscellaneous » Automotive

Muscle Car Review

Miscellaneous » Automotive

Muzeul Naţional al CarpaţIlor Răsăriteni, Sfântu Gheorghe

International » Romanian

Myeloablative Conditioning Regimen

Medical » Oncology