| Abbreviation | Definition |
|---|---|
| GmStain | Gram (biologic) stain |
| Gmstain | Gram stain |
| GN | Gradient of Nutrients |
| GNB | Gram-Negative Bacteria |
| GNID | Gram-negative intracellular diplococci |
| GNL | Galveston National Laboratory |
| GNR | Gram Negative Rods |
| GNR(s) | Gram-negative rod(s) |
| GO | Gene Ontology |
| GOLC | Global Online Laboratory Consortium |
| GOLDI | Grid of Online Laboratory Devices Ilmenau |
| GP | guinea pig |
| GPAL | Great Plains Analytical Laboratories |
| GPAL | Great Plains Analytical Laboratory |
| GPC | Gram-Positive Cocci |
| GPCL | Genomics and Proteomics Core Laboratories |
| GPCL | Global Product Compliance Laboratory |
| GPL | Great Plains Laboratory |
| GPO | glycerol-3-phosphate oxidase |
| GR | Glucocorticoid Receptor |