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os is the dictionary form of ora Definition of os
os has definitions from the fields of zoology,anatomy,computer science,chemistry,ophthalmology |
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[ noun ] (anatomy,zoology) a mouth or mouthlike opening
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[ noun ] (chemistry) a hard brittle blue-gray or blue-black metallic element that is one of the platinum metals; the heaviest metal known
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[ noun ] (computer science) software that controls the execution of computer programs and may provide various services
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[ noun ] (zoology,ophthalmology) the left eye
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[ noun ] (zoology) rigid connective tissue that makes up the skeleton of vertebrates
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