Adjacent Words

os definitions

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WordNet (r) 3.0 (2005)

n
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]

Merriam Webster's

symbol osmium

Merriam Webster's

abbreviation 1. [Latin oculus sinister] left eye 2. Old Style 3. operating system 4. out of stock

Merriam Webster's

I. noun (plural ossa) Etymology: Latin oss-, os — more at osseous Date: 15th century bone II. noun (plural ora) Etymology: Latin or-, os — more at oral Date: 1737 mouth, orifice

Oxford Reference Dictionary

abbr. 1 old style. 2 ordinary seaman. 3 (in the UK) Ordnance Survey. 4 outsize. 5 out of stock.

Oxford Reference Dictionary

symb. Chem. the element osmium.

Webster's 1913 Dictionary

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. 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.

Webster's 1913 Dictionary

Os Os, n.; pl. Ossa. [L.] A bone.

Webster's 1913 Dictionary

Os Os, n.; pl. Ora. [L.] A mouth; an opening; an entrance.

Webster's 1913 Dictionary

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.

Dictionary of Ro

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