| OCT | object classification test; optimal cutting temperature; oral contraceptive therapy; ornithine carba... |
|---|---|
| OD | Doctor of Optometry; obtained absorbance; occipital dysplasia; occupational dermatitis; occupational... |
| OID | optimal immunomodulating dose; Organism Identification Number; oxygen insufflation device |
| OPTHD | optimal hemodialysis |