MyDataFarming

Definitions of O:

noun:   the 15th letter of the Roman alphabet
noun:   the blood group whose red cells carry neither the A nor B antigens
Example: "People with type O blood are universal donors"

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

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Alternative Terms
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