| OD | Ocular dominance |
|---|---|
| OD | Oesophageal dysfunction |
| od | Optical densisty |
| OD | Optical densities |
| OD's | Optical Densities |
| ODB | oestradiol benzoate |
| ODC | L-Ornithine decarboxylase |
| ODC | O(2)-dissociation curve |
| ODC | Ornithine decarboxylase activity |
| ODC | Oxygen Dissociation Curve |