glomerular filtration rate
Guaranteed Frame Rate
Grim File Reaper
Grand Forks Railway
Gap Filler Radar
Gainesville Fire Rescue
Gardon Foil Radiometer
Gas Flow Rate
Gas-Filled Rectifier
Gas-Filled Relay
GDNF family receptor
general fertility rate
General Field Representative
General Functional Requirement
General Functional Requirements
General Fund Receipt
Generator Field Relay
German Federal Republic
Gilford Fire Rescue
Glass Fiber Reinforcement
Glass Fibre Reinforced
Glass-Fiber Reinforced
Glass-Forming Range
Glomerular filtrate rate
glomerular filtration
glomerular filtration rates
Government Flight Representative
Government Furnished Resources
Grand Forks Railway Company
Graphite Fiber Reinforcement