The meaning of the Acronym GR is...

GR is

• Ground Rule

More Meanings For GR:

• Graemlin Related
• Galactic Rotation
• General Radiation
• Glufosinate Resistant
• Guaranteed Reagent
• Ground Representation
• Geometrical Realization
• Groups Of Rococo
• Generalized Rayleigh
• Generalized Ring
• General Relativity
• Gunning Refractory
• Gaming Research
• Greatest Randonneur
• Green and Red

GR is also in:

• Astronomy
• Awards & Medals
• Chemistry
• Colors
• Electronics
• Mathematics
• Physics
• Software
• Universities