os

6 definitions found

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

O \O\ ([=o]), noun; pl. {O's} or {Oes} ([=o]z).

1. The letter O, or its sound. "Mouthing out his hollow oes and aes." --Tennyson.

2. Something shaped like the letter O; a circle or oval. "This wooden O [Globe Theater]". --Shak.

3. A cipher; zero. [R.]

Thou art an O without a figure. --Shak.

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

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

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

Os \Os\, noun; pl. {Ossa}. [L.] A bone.

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

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

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

Os \Os\, noun; 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}.

From WordNet (r) 3.0 (2006) [wn]:

os

noun

1: a mouth or mouthlike opening

2: a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known [syn: {osmium}, {Os}, {atomic number 76}]

3: (computer science) software that controls the execution of computer programs and may provide various services [syn: {operating system}, {OS}]

4: the left eye [syn: {oculus sinister}, {OS}]

5: rigid connective tissue that makes up the skeleton of vertebrates [syn: {bone}, {os}]


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