OS

n. metallic chemical element

apparatus which enables the operation of a device; main program in a computer which is responsible for the allocation of resources to its various procedures

sailor of the lowest rank in the merchant marine; low rank seaman having little experience at sea (term used in the British Royal Navy)

Os or OS may refer to:Os, Hedmark, a municipality in NorwayOs, Hordaland, a municipality in NorwayOs, Østfold, a parish in Norway.Os penis, the bone in most mammals which makes the penis rigidOculum Sinister, Latin, "left eye"Austria, from its World Meteorological Organization country codeAustrian Airlines, its IATA code Ansuz rune, an Anglo-Saxon runeExternal orifice of the uterus, the external osInternal orifice of the uterus, the internal osOgawa Seiki, a Japanese manufacturer of model airplane engines Olympic Games, an international multi-sport event taking place every four yearsOpen Seat, a tennis tournament in Barecelona, SpainOpen Source softwareOperating system, the software that manages the hardware and software of a computerOrdnance Survey the national mapping agency for Great BritainOsmium, a chemical elementOssetian language, from its ISO 639 alpha-2 codeOutlaw Star, a popular Japanese animeOverseasOff Screen; a formatting abbreviation in screenplays.one of the ÆsirOld Style date, referring to the Julian Calendar; see Old Style and New Style datesOld Stoic, a former pupil of Stowe SchoolOld Sedberghian, a former pupil of Sedbergh SchoolOld Shirburnian, a former pupil of Sherborne School
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OS [L.] o´culus sinis´ter. Os osmium. os pl. o´ra [L.] 1. any body orifice. 2. the mouth. os pl. os´sa [L.] bone. [more]Os - Community and Resources

Noun
1. (computer science) software that controls the execution of computer programs and may provide various services
(synonym) operating system
(hypernym) software, software system, software package, package
(hyponym) DOS, disk operating system
(part-holonym) platform
(part-meronym) supervisory program, supervisor, executive program
(classification) computer science, computing
2. the left eye
(synonym) oculus sinister
(hypernym) eye, oculus, optic

Noun
1. a hard brittle blue-gray or blue-black metallic element that is one of the platinum metals; the heaviest metal known
(synonym) osmium, atomic number 76
(hypernym) metallic element, metal

Noun
1. a mouth or mouthlike opening
(hypernym) orifice, opening, porta
2. rigid connective tissue that makes up the skeleton of vertebrates
(synonym) bone
(hypernym) connective tissue
(hyponym) furcula
(substance-holonym) horn
(part-holonym) endoskeleton
(substance-meronym) collagen
(part-meronym) socket

Os, osmium, metallic chemical element