What does O3 stand for?

What does O3 mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: O3.

We've found a total of 2 definitions for O3:

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O3

Ozone

Governmental » Transportation

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O3

Officer grade: Lieutenant or Captain

Governmental » Military

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"O3." Abbreviations.com. STANDS4 LLC, 2015. Web. 24 May 2015. <http://www.abbreviations.com/O3>.