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Definitions of o
  1. noun
    the blood group whose red cells carry neither the A nor B antigens
    "people with type O blood are universal donors"

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  2. 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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  3. noun
    the 15th letter of the Roman alphabet
Definition that contains o
  • a one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
  • for One who takes, or that which is said on, the affirmative side; that which is said in favor of some one or something; the antithesis of against, and commonly used in connection with it.
  • have organize or be responsible for
  • be occupy a certain position or area; be somewhere
  • just of moral excellence
  • just only a moment ago
  • just only a very short time before
  • get overcome or destroy
  • up open
  • up out of bed
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