The meaning of the Acronym MR is...

MR is

• Maintenance Release
• Master Reset

More Meanings For MR:

• Men's Rest room
• Mirror Roof
• Measurement of Red
• Moonlight Rising
• Mica Reactive
• Moderately Resistant
• Magneto Rheological
• Multiclass Ranking
• Minimum Residual
• Moving Range
• Matrix Renumbering
• Multi-Rater
• Minimal Relativity
• Maximal Reachable
• Molar Refractivity

MR is also in:

• Architecture
• Astronomy
• Chemistry
• Mathematics
• Physics
• Universities