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OS

 (L.)
o´culus sinis´ter (left eye).

OS

The JCAHO directs that left eye be written in full to avoid confusion with similar abbreviations.
Abbreviation for L. oculus sinister, left eye.

Os

(oz),
Symbol for osmium.

os

, gen.

o·'ris

, pl.

o·ra

(oz, ō'ris, ō'ră), Do not confuse this word with os, ossis 'bone'.
1. The mouth.
2. Term applied sometimes to an opening into a hollow organ or canal, especially one with thick or fleshy edges.

See also: mouth (2), ostium, orifice, opening.
[L. mouth]

os 1

(ōs)
n. pl. ora (ôr′ə)
A mouth or an opening.

os 2

(ŏs)
n. pl. ossa (ŏs′ə)
A bone.

OS

Abbreviation for:
oculus sinister (left eye)
obese strain
observational study
occupational safety
office surgery
oligosaccharide
Omenn syndrome
opening snap
Opitz syndrome
oral solution
ordnance survey  
organ specific
Osgood-Schlatter
osteosarcoma
osteosclerosis
outer segment
overall survival
overlap syndrome
oxidative stress
oxygen saturation

OS

Symbol for
1. Occupational safety.
2. Oculus sinister–left eye.
3. Opening snap.
4. Operating system.
5. Oral surgery.
6. Order sheet.
7. Osgood-Schlatter's disease.
8. Osteogenic sarcoma.
9. Osteosclerosis.
10. Oxygen saturation.

Os

Symbol for osmium.

os

, gen. oris, pl. ora (os, ō'ris, -ă) [TA]
1. [TA] The mouth.
2. Term applied sometimes to an opening into a hollow organ or canal, especially one with thick or fleshy edges.
[L. mouth]

os

A bone or a mouth.

os

  1. the technical name for a bone.
  2. a mouth or mouth-like part.

Os

Symbol for osmium
References in periodicals archive ?
Alongside combat rescue officers and pararescuemen from Moody's 38th Rescue Squadron, the unit provides OSAR coverage for all U.S.
These documents are then permanently written to optical disk and stored in the OSAR library where they become official hospital documents.
Interviewed by SUNA on the occasion of 59th anniversary of the Algerian Liberation Revolution, Ambassador Osar said that Sudan and Algeria are linked to each other with fraternal and excellent relations at all levels that are based on amity, respect and the mutual interest.
La belleza es la ultima palabra que el intelecto pensante puede osar pronunciar, porque era no hace otra cosa que coronar, como aureola de esplendor inalcanzable, el doble astro de lo verdadero y lo bueno en su indisoluble relacion.
<<Anduvimos mucha tierra y toda la hallamos despoblada, porque los moradores della andavan huyendo por las sierras sin osar tener casas ni labrar por miedo de los christianos.
Osar (New York City Chapter) was named to the board of AGL Resources Inc.