The meaning of the Acronym MR is...

MR is

• Mountain Rider
• Medium Runner
• Middle Relief
• Mitsubishi Racing
• Medley Relay

More Meanings For MR:

• Magic Return
• Memory Read
• Modem Riser
• Maintenance Release
• Master Reset
• Masked ROM (Read Only Memory)
• Memory Recall
• Men's Rest room
• Mirror Roof
• Measurement of Red
• Moonlight Rising
• Mica Reactive
• Moderately Resistant
• Molar Refractivity
• Magnetic Resonance

MR is also in:

• Architecture
• Assembly
• Astronomy
• Chemistry
• Drivers
• Electronics
• General
• Hardware