• WordNet 3.6
    • n os rigid connective tissue that makes up the skeleton of vertebrates
    • n os a mouth or mouthlike opening
    • n OS the left eye
    • n OS (computer science) software that controls the execution of computer programs and may provide various services
    • n Os a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
    • ***
Webster's Revised Unabridged Dictionary
    • n Os A bone.
    • n Os A mouth; an opening; an entrance.
    • n Os (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.
    • ***
Century Dictionary and Cyclopedia
    • n os Bone; a bone.
    • n os A mouth; a passage or entrance into any place: an anatomical term; specifically, the mouth of the womb.
    • n os In geology, a Swedish term for certain elongated ridges of detrital material, generally considered to be of glacial origin, or in some not yet clearly explained way connected with the former presence of ice in the region where they occur. Some of these ridges in Sweden are over a hundred miles in length, and so regular in form that they are not infrequently used as roads. In Scotland they are called kames, in Ireland eskars. See eskar.
    • n os In chem., the symbol for osmium.
    • n os Same as os extrascapulare.
    • n os An abbreviation of the Latin Ordo Sancti Augustini, Order of St. Augustine.
    • n os An abbreviation of the Latin Ordo Sancti Benedicti, Order of St. Benedict.
    • os An abbreviation of the Latin Ordo Sancti Francisci, Order of St. Francis.
    • ***
Chambers's Twentieth Century Dictionary
    • n Os os a bone.
    • ***


Webster's Revised Unabridged Dictionary
Sw. ås, ridge, chain of hills, pl. åsar,
Chambers's Twentieth Century Dictionary


In literature:

Then bent Os-ko-ne-an-tah over both and essayed to take from To-ke-ah the form of Jo-que-yoh.
"The International Monthly Magazine, Volume 5, No. 1, January, 1852" by Various
Os: the mouth of insects, in general.
"Explanation of Terms Used in Entomology" by John. B. Smith
"Special Report on Diseases of the Horse" by United States Department of Agriculture
Opposite the os hyoides, the internal jugular vein lies closer to the common carotid than it does farther down towards the root of the neck.
"Surgical Anatomy" by Joseph Maclise
And I had two N.C.Os.
"Q.6.a and Other places" by Francis Buckley
Caution: Wait a few hours; examine os again.
"Philosophy of Osteopathy" by Andrew T. Still
Blister on the os sacrum.
"Zoonomia, Vol. II" by Erasmus Darwin
Os iosal; secretly, covertly.
"Elements of Gaelic Grammar" by Alexander Stewart
The os uteri dilated so as to admit one finger only.
"North American Medical and Surgical Journal, Vol. 2, No. 3, July, 1826" by Various
Traz os Montes, 1, 29, 220.
"Portuguese Architecture" by Walter Crum Watson

In poetry:

Olas gigantes que os rompeis bramando
En las playas desiertas y remotas,
Envuelto entre la sabana de espumas,
iLlevadme con vosotras!
"Rimas LII" by Gustavo Adolfo Becquer
"Loketh what thes potter hayt geffe yow and me;
Feyffe pottys smalle and grete!"
"He ys fol wellcom, seyd the screffe,
"Let os was, and go to mete."
"Robin Hood And The Potter" by Andrew Lang
" You can't come in here! " he thundered,
—Then —a woman's voice —so soft —
Said., "Don't turn them out in the storm — OS-WALD!
Let them sleep up in the loft!"
"The Travellers aka Twas a Dark and Stormy Night! (with knobs on)" by T W Connor

In news:

View full size OS Sybil Exposed by Debbie Nathan.
Mozilla said Monday that it has named its forthcoming HTML5 mobile operating system Firefox OS, gained support for it from more telcos and found two device manufacturers that intend to build phones using the OS.
It's Mac OS X compatible.
Mac users can expect only a slight moderation of the rapid pace of Mac OS X upgrades, even after Apple releases the next version, code-named Tiger.
Apple to Ease Off Annual Mac OS Upgrade Pace.
Here's how to turn them off in OS x 10.7 Lion.
Os Mutantes, reunited since 2006, is one of the most influential acts in the Tropicália movement.
How Trustworthy Is Your OS.
Reporter's notebook: MS pushes a fast move to Windows Server 2003, but OS migration isn't in the cards for years at many firms.
There is no drama in the latest update to the mobile OS platform, unless your device doesn't make the cut.
New OS beats perception-plagued Vista even as it fails to match Windows 7.
Little Snitch 3 for OS X tweaked for better usability .
Trend Micro researchers have identified variants targeting Nokia's Symbian OS and Windows Mobile.
NetApp Intros Flash Pool, Virtual Storage Appliances With New Storage OS.
China's Alibaba Unveils New Mobile OS.

In science:

Let g = dim |OX (Y )| = dim |OS (D)| and X can be embedded to Pg × ∆ by the complete linear series |OX (Y )|.
A Simple Proof that Rational Curves on K3 are Nodal
It is easy to check that OS and OP have the same length.
Constructing Fresnel reflection coefficients by ruler and compass
We show that the underlying phase space should be the super-homogeneous manifold OS p1(H|H)/U (H+ |H+ ), and the supersymplectic form is the natural one on this space.
Large N limit of SO(N) gauge theory of fermions and bosons
E so it is an element of the Lie algebra of OS p.
Large N limit of SO(N) gauge theory of fermions and bosons
We study properties of f (β ) and compare our results with those obtained for REM and the Erd˝os-R´enyi limit theorem.
Limit Theorem for Sums of Random Products