| Abbreviation | Definition |
|---|---|
| GFI | Gas Field Ionization |
| GFM | Gram Formula Mass |
| GFW | Gram Formula Weight |
| GGX | Glycine-Glycine-X |
| GHB | Gamma Hydroxy Butyrate |
| GHC | Glycinated Herbal Complex |
| GHS | Globally Harmonised System of Classification and Labelling of Chemicals (UN) |
| GI | Galvanized Iron |
| GIC | Global Instructional Chemistry |
| GICD | Gas-Injected Cellular Di-electric |
| GICT | Gujarat Institute Of Chemical Technology |
| GKS | Gaspar-Kohn-Sham |
| GLA | Gamma Linoleic Acid |
| GLA | Gamma Linolen Acid |
| GLA | Gamma Linolenic Acid |
| GLCC | Great Lakes Chemical Corporation |
| GLDH | Glutamate Dehydrogenase |
| GLI | Grand Luxe Injection |
| GLO | GLyOxalase |
| GLOB | Globular |