Definitions for osɒs; ˈɒs ə

This page provides all possible meanings and translations of the word os

Random House Webster's College Dictionary

osɒs; ˈɒs ə(n.)(pl.)os•sa

  1. a bone.

    Category: Anatomy, Zoology

Origin of os:

1540–50; < L

osɒs; ˈɔr ə, ˈoʊr ə(n.)(pl.)o•ra

  1. a mouth or orifice of the body.

    Category: Anatomy, Zoology

Origin of os:

1730–40; < L ōs mouth


  1. Old Saxon.

    Category: Peoples

  2. Computers. operating system.

    Category: Computers


  1. osmium.

    Category: Chemistry

* Chem. Symbol..


  1. (in prescriptions) the left eye.

    Category: Pharmacology

  2. old series.

    Category: Titles, Associations, Organizations

  3. ordinary seaman.

    Category: Titles, Associations, Organizations, Navy

Origin of O.S.:

< L oculus sinister

Princeton's WordNet

  1. os(noun)

    a mouth or mouthlike opening

  2. osmium, Os, atomic number 76(noun)

    a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known

  3. operating system, OS(noun)

    (computer science) software that controls the execution of computer programs and may provide various services

  4. oculus sinister, OS(noun)

    the left eye

  5. bone, os(noun)

    rigid connective tissue that makes up the skeleton of vertebrates


  1. OS(Noun)

    an Ordnance Survey map.

    We've got an OS of the Cuckmere area.

  2. Origin: From neuter word os with the oris (meaning "mouth").


  1. Os

    Os is a municipality in Hedmark county, Norway. It is part of the traditional region of Østerdalen. The administrative centre of the municipality is the village of Os i Østerdalen. The new municipality of Os was separated from Tolga on 1 July 1926. The municipality is located to the west of the municipality of Røros and to the south of Midtre Gauldal and Holtålen in Sør-Trøndelag county. In Hedmark county, Os is east of Tolga and north of Engerdal.

The New Hacker's Dictionary

  1. OS

    1. [Operating System] n. An abbreviation heavily used in email, occasionally in speech. 2. n. obs. On ITS, an output spy. See OS and JEDGAR in Appendix A.

Anagrams of os

  1. SO, So, So., s.o., s/o, so

Translations for os

Kernerman English Multilingual Dictionary


a castrated bull used (formerly in Britain and still in some countries) to pull carts, ploughs etc

an ox-drawn cart.

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