| ODC | oritidine decarboxylase; ornithine decarboxylase; oxygen dissociation curve |
|---|---|
| Odc | ornithine decarboxylase |
| ODCP | ornithine decarboxylase pseudogene |
| OKT | ornithine ketoacid amino-transferase |
| OMP | olfactory marker protein; ornithine monophosphate; outer membrane protein |