| OSCC | Oral squamous cell carcinoma |
|---|---|
| OSCE | OBJECTIVE Structured Clinical Examination |
| OSCP | Oligomycin Sensitivity Conferring Protein |
| OSE | Ovarian Surface Epithelium |
| OSE | Ovarian surface epithelial |
| OSF | Oral Submucous Fibrosis |
| OSF | Organ System Failure |
| OSHA | Occupational Safety and Health Administration |
| osk | Oskar |
| OSM | Oncastatin M |