Greenwich Mean Time 
Giant Magellan Telescope 
Generic Mapping Tool 
Generic Mapping Tools 
General Military Training 
Greenwich Meridian Time 
Greewich Mean Time 
Guided Missile Transporter 
gamma-glutamyl transferase 
GATX CORP. 
GATX Corporation 
Geiger-Mueller Tube 
GENERAL MACHINE TEST 
General Materials Terminals Incorporat… 
General Mean Time 
Generalized Machine Theory 
Generative Model Transformer 
Geographic Means Test 
geometric mean antibody titer 
geometric mean antibody titers 
geometric mean titer 
geometric mean titers 
geometric mean titre 
geometric mean titres 
gingival margin trimmer 
Giuseppi Maria Terreni 
glass mat thermoplastic 
Glass Mat Thermoplastics 
Global Market Trends 
Global Medical Training