What does O mean in Unit Measures?
This page is about the meanings of the acronym/abbreviation/shorthand O in the Miscellaneous field in general and in the Unit Measures terminology in particular.
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What does O mean?
- oxygen, O, atomic number 8(noun)
- a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust