O.S.
Noun
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Noun
O.S.
- (countable, computing) Initialism of operating system
- (calendar systems) Abbreviation of Old Style#English|Old Style.
- (eyewear) Initialism of oculus [[sinister]] the left eye from the patient's point of view
- (eyewear) O.D.
This text is extracted from the Wiktionary and it is available under the CC BY-SA 3.0 license | Terms and conditions | Privacy policy 0.004