Os
Os is most frequently seen in computing to indicate open‑source software, open systems, or an operating system, and is also used more generally for open system concepts across technology.
Medical
Osteogenic Sarcoma (bone tumors)
Overall Survival
Left eye (oculus sinister)
Oral Surgery
Left Eye
Oxygen Saturation
Ocular Sinister
Orthopaedic Surgeon
Opposite Strand
OStium (mouth)
mouth (os)
Obese Strain
Observational Study
Occupational Safety
Office Surgery
oligosaccharide
Omenn syndrome
Opening Snap
Opitz syndrome
Oral Solution
Organ-Specific
Osgood-Schlatter
osteosarcoma
Osteosclerosis
Outer Segment
Overlap Syndrome
Oxidative Stress
Miscellaneous
Offentlig Sak
Old Shinola
One Size
Ophiological Services
Over Sized
Old Sebilis
Old Suisun
Omnipotent Spirituality
Operating Style
Object Summary
Outer Sen
Operational Sponge
Os Stands
Ole Syversen
A Outside System
Oculus Sinister
Ownage Squad
Oh Starcraft
On Serotta
A On Surveillance
Orchard Street
Occulus Sinister
Oooh Shizzit
Overly Short
Online Service
Omega Strain
On Steroids
Ostrich Source
Open Socket
Officer Standpoint
Optical Stabilizer
Open Systems
Oh Shoot
One shot
Community
Governmental
Operating Strength
Optional Stopping
Opportunity to Serve
Outer Space
On Station
Ordnance Survey
On Sea
Other Specifications
Old Skool
Overtly Similar
On Service
Outer Sensor
Other Source
Other Supplementary
Outside Scope
Operating Software
Optics Subsystem
Orbital Servicing
Orbiter Specification
Operations Specialist