The meaning of the Acronym GR is...

GR is

• Glenn Research
• General Radio
• Greenfield And Robinson
• Ghost Reapers

More Meanings For GR:

• 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
• Growth Rates
• Growth Rate
• Glenn Research

GR is also in:

• Accounting
• Astronomy
• Chemistry
• Electronics
• Firms
• Mathematics
• Physics
• Universities