OR (abbreviation): Stands for "operating room". A facility equipped for performing surgery.
OR is sometimes written O.R.
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Using Abbreviations Correctly ... If you are frequently confronted with decisions regarding abbreviations, get hold of a copy of either The Chicago Manual of Style or The ...
abbreviation, in communications (especially written), the process or result of representing a word or group of words by a shorter form of the word or phrase.
OR (abbreviation), medical definition, medical terms, Online Medical Dictionary and glossary with medical definitions