| OG | Octyl glucoside |
|---|---|
| OG | orchard grass |
| OGD | Oesophagogastroduodenoscopy |
| OGD | Oxygen-glucose deprivation |
| OGDC | 2-oxo-glutarate dehydrogenase complex |
| OGDH | 2-oxoglutarate dehydrogenase |
| OGF | Opioid growth factor |
| oGH | Ovine growth hormone |
| OGP | Osteogenic growth peptide |
| OGTT | Oral Glucose Tolerance Test |