Os

Os

The symbol for the element osmium.

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os ¹  (s)

n. pl. o·ra (ôr, r)

A mouth or an opening.

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[Latin s, mouth; see s- in Indo-European roots.]

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os ²  (s)

n. pl. os·sa (s)

A bone.

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[Latin, bone; see ost- in Indo-European roots.]

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os ³  (s)

n. pl. os·ar (sär)

See esker.

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[Swedish ås, ridge, from Old Norse ss.]

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Os Chem osmium

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OS

1. (in Britain) Ordnance Survey

2. outsize(d)

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Os

The symbol for osmium.

Thesaurus

Noun	1.	os - a mouth or mouthlike opening         orifice, porta, opening - an aperture or hole that opens into a bodily cavity; "the orifice into the aorta from the lower left chamber of the heart"
	2.	Os - a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known atomic number 76, osmium metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
	3.	OS - (computer science) software that controls the execution of computer programs and may provide various services operating system platform - the combination of a particular computer and a particular operating system computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures software, software package, software program, software system, computer software, package - (computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory; "the market for software is expected to expand" disk operating system, DOS - an operating system that is on a disk UNIX, UNIX operating system, UNIX system - trademark for a powerful operating system executive program, supervisory program, supervisor - a program that controls the execution of other programs Windows - (trademark) an operating system with a graphical user interface
	4.	OS - the left eye oculus sinister eye, oculus, optic - the organ of sight
	5.	os - rigid connective tissue that makes up the skeleton of vertebrates bone horn - one of the bony outgrowths on the heads of certain ungulates furcula - a forked bone formed by the fusion of the clavicles of most birds splint bone - a rudimentary metacarpal or metatarsal bone on either side of the cannon bone in the leg of a horse or related animal fetter bone, pastern - the part between the fetlock and the hoof cannon bone - greatly developed metatarsal or metacarpal bone in the shank or cannon part of the leg in hoofed mammals fishbone - a bone of a fish anklebone, astragal, astragalus, talus - the bone in the ankle that articulates with the leg bones to form the ankle joint bare bone - bone stripped of flesh cuboid bone - the cube shaped bone on the outer side of the tarsus carpal, carpal bone, wrist bone - any of the eight small bones of the wrist of primates cartilage bone - any bone that develops within cartilage rather than a fibrous tissue centrum - the main body of a vertebra cheekbone, jugal bone, malar, malar bone, os zygomaticum, zygomatic, zygomatic bone - the arch of bone beneath the eye that forms the prominence of the cheek clavicle, collarbone - bone linking the scapula and sternum coccyx, tail bone - the end of the vertebral column in humans and tailless apes dentin, dentine - bone (calcified tissue) surrounding the pulp cavity of a tooth ethmoid, ethmoid bone - one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity calcaneus, heelbone, os tarsi fibulare - the largest tarsal bone; forms the human heel hipbone, innominate bone - large flaring bone forming one half of the pelvis; made up of the ilium and ischium and pubis hyoid, hyoid bone, os hyoideum - a U-shaped bone at the base of the tongue that supports the tongue muscles ilium - the upper and widest of the three bones making up the hipbone ischial bone, ischium, os ischii - one of the three sections of the hipbone; situated below the ilium long bone, os longum - in limbs of vertebrate animals: a long cylindrical bone that contains marrow ramus - the posterior part of the mandible that is more or less vertical membrane bone - any bone that develops within membranous tissue without previous cartilage formation; e.g. the clavicle and bones of the skull metacarpal, metacarpal bone - any bone of the hand between the wrist and fingers metatarsal - any bone of the foot between the ankle and the toes nasal bone, os nasale, nasal - an elongated rectangular bone that forms the bridge of the nose bonelet, ossicle, ossiculum - a small bone; especially one in the middle ear os palatinum, palatine bone, palatine - either of two irregularly shaped bones that form the back of the hard palate and helps to form the nasal cavity and the floor of the orbits phalanx - any of the bones of the fingers or toes os pubis, pubic bone, pubis - one of the three sections of the hipbone; together these two bones form the front of the pelvis costa, rib - any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates) round bone - bones that are round in shape sacrum - wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx scapula, shoulder blade, shoulder bone - either of two flat triangular bones one on each side of the shoulder in human beings os sesamoideum, sesamoid, sesamoid bone - any of several small round bones formed in a tendon where it passes over a joint os breve, short bone - a bone that is of approximately equal dimension in all directions

Translations

OS abbr (BRIT) (= Ordnance Survey) → servicio oficial de topografía y cartografía: (NAUT) (= ordinary seaman): (DRESS);

outsize

OS abbr (Brit) (= Ordnance Survey) → IGN m (Institut géographique national): (Naut) = ordinary seaman: (Dress) = outsize

OS abbr (BRIT) (= Ordnance Survey) → IGM m (= Istituto Geografico Militare): (NAUT) see ordinary seaman: (DRESS) = outsize