Os

9 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  O \O\ ([=o]), n.; pl. {O's} or {Oes} ([=o]z).
     1. The letter O, or its sound. "Mouthing out his hollow oes
        and aes." --Tennyson.
        [1913 Webster]
  
     2. Something shaped like the letter O; a circle or oval.


        "This wooden O [Globe Theater]". --Shak.
        [1913 Webster]
  
     3. A cipher; zero. [R.]
        [1913 Webster]
  
              Thou art an O without a figure.       --Shak.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Os \Os\, n. (Chem.)
     The chemical symbol for the element {osmium}.
     [PJC]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Os \Os\, n.; pl. {Ossa}. [L.]
     A bone.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Os \Os\, n.; pl. {Ora}. [L.]
     A mouth; an opening; an entrance.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Os \Os\, n.; pl. {Osar}. [Sw. [*a]s ridge, chain of hills, pl.
     [*a]sar.] (Geol.)
     One of the ridges of sand or gravel found in Sweden, etc.,
     supposed by some to be of marine origin, but probably formed
     by subglacial waters. The osar are similar to the kames of
     Scotland and the eschars of Ireland. See {Eschar}.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  os
       n 1: a mouth or mouthlike opening
       2: a hard brittle blue-gray or blue-black metallic element that
          is one of the platinum metals; the heaviest metal known
          [syn: {osmium}, {atomic number 76}]
       3: (computer science) software that controls the execution of
          computer programs and may provide various services [syn: {operating
          system}]
       4: the left eye [syn: {oculus sinister}]
       5: rigid connective tissue that makes up the skeleton of
          vertebrates [syn: {bone}]
       [also: {ossa} (pl), {osar} (pl), {ora} (pl)]

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

  OS
       Operating System
       
       

From Jargon File (4.3.1, 29 Jun 2001) [jargon]:

  OS /O-S/ 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.
  
  

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  OS
       
          1. {operating system}.
       
          2. [obsolete, {ITS}], an output spy.  See "{OS and JEDGAR}".
       
          3.  An {operating system} from {IBM} for
          their {System/360} line of hardware announced in 1964.  OS was
          planned with several flavours that were supposed to be
          compatible.  OS was late, memory hungry and not able to reach
          the marketing objectives of IBM for the 360/30, the planned
          successor of the {IBM 1401}.  IBM then decided to design a new
          operating system for the low end machines which they called
          {DOS/360}.
       
          [{Jargon File}]
       
          (1997-09-22)