| OSF | organ system failure; osteoclast-stimulating factor; outer spiral fiber; overgrowth stimulating factor |
|---|---|
| OSH | Act Occupational Safety and Health Act of 1970 |
| OSHA | Occupational Safety and Health Adminstration |
| OSI | open systems interconnection [reference model] |
| OSM | ovine submaxillary mucin; oxygen saturation meter |
| osm | osmole; osmosis, osmotic |
| Osm/kg | osmoles per kilogram |
| Osm/l | osmoles per liter |
| OSMED | otospondylometaphyseal dysplasia |
| osmol | osmole |