| Abbreviation | Definition |
|---|---|
| GG | Glycoprotien G |
| GGEL | Gamma-Glutamyl E-Lysine |
| GGEQ | Global Generic EQuivalent |
| GGEX | Gross Growth Efficiency for X |
| GGL | Global Gemological Laboratories |
| GGL | Global Gemological Laboratory |
| GGLL | Geoscience Geoengineering Learning Laboratory |
| GGT | Gamma Glutamyl Trans |
| GGT | Gamma-Glutamyl Transferase |
| GGTP | Gamma Glutamyl TransPeptidase |
| GGTP | Gamma-glutamyl Transpeptidase |
| GH | Growth Hormone |
| GHB | Glycosylated Hemoglobin |
| GICD | Gladstone Institute of Cardiovascular Disease |
| GICL | Geometric and Intelligent Computing Laboratory |
| GIF | Growth Inhibitory Factor |
| GILC | Gemstone Industry Laboratory Conference |
| GIPL | Geophysical Institute Permafrost Laboratory |
| GISA | glycopeptide-intermediate S. aureus |
| GISERIES | GastroIntestinal Series |