| Abbreviation | Definition |
|---|---|
| G6PD | Glucose-6-Phosphate dehydeogenase Defficiency |
| GATT | General Agreement on Tariff and Trade |
| GBH | gamma benzene hexachloride |
| GBS | Guillain-Barre Syndrome |
| GCC | gastric cardia cancer |
| GCC | General Chiropractic Council |
| GCC | giant cell carcinoma |
| GCC | glassy cell carcinoma |
| GCC | glucocorticoid |
| GCC | goblet cell carcinoid |
| GCC | guanylyl cyclase C |
| GCS | general clinical services |
| GCS | genome conformational state |
| GCS | Gianotti-Crosti syndrome |
| GCS | Glasgo Coma Scale |
| GCS | glucocorticosteroid |
| GCS | graduated compression stockings |
| GCSEXX | General Certificate of Secondary Education |
| GCSF | Granulocyte Colony-Stimulating Factor |
| GDC | General Dental Council |