What does O/R stand for?

What does O/R mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: O/R.

We've found a total of 3 definitions for O/R:

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O/R

Outside Radius

Governmental » NASA

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O/R

Oxygen Relief

Governmental » NASA

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o/r

On Request

Miscellaneous » Aircraft & Aviation

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"O/R." Abbreviations.com. STANDS4 LLC, 2015. Web. 4 Sep. 2015. <http://www.abbreviations.comserp.php?st=O%2FR>.