| Os The symbol for the element osmium. |
| OS abbr. 1. or O/S Old Style 2. ordinary seaman |
os 1 ( s)n. pl. o·ra (ôr   ,  r) A mouth or an opening. [Latin s, mouth; see s- in Indo-European roots.] |
| os 2 (s) n. pl. os·sa ( s) A bone. [Latin, bone; see ost- in Indo-European roots.] |
| os 3 (s) n. pl. os·ar ( sär ) See esker. [Swedish ås, ridge, from Old Norse  ss.] |
Os
the chemical symbol for
(Chemistry / Elements & Compounds) osmium
OS
abbreviation for
1. (Social Science / Education) Old School
2. (Earth Sciences / Physical Geography) Old Style (method of reckoning dates)
3. (Transport / Nautical Terms) Ordinary Seaman
4. (Mathematics & Measurements / Surveying) (in Britain) Ordnance Survey
5. outsize
6. (Linguistics / Languages) Old Saxon (language)
os1
n pl ossa [ˈɒsə]
(Life Sciences & Allied Applications / Anatomy) Anatomy the technical name for bone
[from Latin: bone; compare Greek osteon]
os2
n pl ora [ˈɔːrə]
(Life Sciences & Allied Applications / Anatomy) Anatomy Zoology a mouth or mouthlike part or opening
[from Latin]
os3
n pl osar [ˈəʊsɑː]
(Earth Sciences / Geological Science) another name for esker
[C19 osar (pl), from Swedish ås (sing) ridge]
| Os The symbol for osmium. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  os - a mouth or mouthlike opening |
| 2. |  Os - a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal knownmetal, 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 servicesplatform - 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 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 | |
| 5. |  os - rigid connective tissue that makes up the skeleton of vertebrateshorn - 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 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 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 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 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 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
1. (Brit) (Geog) =Ordnance Survey servicio oficial de topografía
2. (Brit) (Navy) =Ordinary Seaman
3. (Hist) =old style → según el calendario juliano
OS [ˌəʊˈɛs] abbr (Brit)
OS [ˌəʊˈɛs] abbr (Brit)
a. =Ordnance Survey → I.G.M. m =Istituto Geografico Militare
b. (Naut) = ordinary seaman
c. (clothes) = outsize
OS [ˌəʊˈɛs] abbr (Brit)
a. =Ordnance Survey → I.G.M. m =Istituto Geografico Militare
b. (Naut) = ordinary seaman
c. (clothes) = outsize
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