O.S.

1

or o.s.


(in prescriptions) the left eye.

Origin of O.S.

1
From the Latin word oculus sinister

Definition for o.s. (2 of 2)

O.S.2

Old Saxon.
Old School.
Old series.
(of the calendar) Old Style.
Also o.s. ordinary seaman.
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British Dictionary definitions for o.s.

o.s.

OS or O/S


abbreviation for

out of stock
banking outstanding
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012