| OAVD | oculoauriculovertebral dysplasia |
|---|---|
| OD | Doctor of Optometry; obtained absorbance; occipital dysplasia; occupational dermatitis; occupational... |
| ODD | oculodentodigital [dysplasia]; oppositional defiant disorder |
| ODOD | oculo-dento-osseous dysplasia |
| OFCTAD | occipito-facio-cervico-thoraco-abdomino-digital dysplasia |