| OMD | ocular muscle dystrophy; oculomandibulodyscephaly; organic mental disorder; oromandibular dystonia |
|---|---|
| OMS | organic mental syndrome; otomandibular syndrome |
| Org, org | organic |
| POC | particulate organic carbon; point of care; postoperative care; probability of chance; product of con... |
| PON | paraoxonase; particulate organic nitrogen |