Goods and Services Tax 
Guam Standard Time 
Glutathione S Transferase 
General Sales Tax 
Greenwich Sidereal Time 
Geographical Specialist Team 
Gesellschaft Schweizerischer Tierärzte 
Global Storage Technologies 
Goods and Service Tax 
Ground Sensor Terminal 
Ground Support Terminal 
Ground System Test 
Gulf Strike Team 
Gaia Science Team 
Galileo System Time 
gastric stromal tumors 
gastrocnemius 
Gemini System Trainer 
general safety test 
general services tax 
General Staff Target 
General System Theory 
General Systems Theory 
generalized seizure threshold 
generalized seizure triggering thresho… 
Genistein 
Geophysical Society of Tulsa 
Gesellschaft Schweizerischer Tierärzte 
gestodene 
Glass Science and Technology